Nonempty Observation List Descriptive Statistics Foundations
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batch-20261005-advance-20261006-r07-descriptive-statistics-foundations · 2026-10-05 · 100 questions
This English edition is an AI candidate and does not yet have an OCME Atlas (GPT-6) Twin closure receipt.
1. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[0]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
0/1
Sum all 1 observations with their multiplicities and divide by that positive count, obtaining 0/1. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
2. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[-3, -3, -3]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
-3/1
Sum all 3 observations with their multiplicities and divide by that positive count, obtaining -3/1. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
3. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[-4, 1, 8]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
5/3
Sum all 3 observations with their multiplicities and divide by that positive count, obtaining 5/3. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
4. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[-2, -2, 5, 5]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
3/2
Sum all 4 observations with their multiplicities and divide by that positive count, obtaining 3/2. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
5. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[-7, -7, 2, 8, 8]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
4/5
Sum all 5 observations with their multiplicities and divide by that positive count, obtaining 4/5. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
6. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[8, 8, 1, -7, -7, -7]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
-2/3
Sum all 6 observations with their multiplicities and divide by that positive count, obtaining -2/3. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
7. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[9, 9, 9, -1, -1, -8]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
17/6
Sum all 6 observations with their multiplicities and divide by that positive count, obtaining 17/6. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
8. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[10, 0, 0, 0, -9, -9]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
-4/3
Sum all 6 observations with their multiplicities and divide by that positive count, obtaining -4/3. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
9. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[11, 11, 1, -10, -10, -10]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
-7/6
Sum all 6 observations with their multiplicities and divide by that positive count, obtaining -7/6. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
10. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[12, 12, 12, -1, -1, -11]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
23/6
Sum all 6 observations with their multiplicities and divide by that positive count, obtaining 23/6. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
11. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[13, 0, 0, 0, -12, -12]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
-11/6
Sum all 6 observations with their multiplicities and divide by that positive count, obtaining -11/6. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
12. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[14, 14, 1, -13, -13, -13]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
-5/3
Sum all 6 observations with their multiplicities and divide by that positive count, obtaining -5/3. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
13. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[15, 15, 15, -1, -1, -14]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
29/6
Sum all 6 observations with their multiplicities and divide by that positive count, obtaining 29/6. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
14. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[16, 0, 0, 0, -15, -15]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
-7/3
Sum all 6 observations with their multiplicities and divide by that positive count, obtaining -7/3. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
15. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[17, 17, 1, -16, -16, -16]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
-13/6
Sum all 6 observations with their multiplicities and divide by that positive count, obtaining -13/6. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
16. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[18, 18, 18, -1, -1, -17]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
35/6
Sum all 6 observations with their multiplicities and divide by that positive count, obtaining 35/6. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
17. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[19, 0, 0, 0, -18, -18]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
-17/6
Sum all 6 observations with their multiplicities and divide by that positive count, obtaining -17/6. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
18. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[20, 20, 1, -19, -19, -19]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
-8/3
Sum all 6 observations with their multiplicities and divide by that positive count, obtaining -8/3. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
19. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[21, 21, 21, -1, -1, -20]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
41/6
Sum all 6 observations with their multiplicities and divide by that positive count, obtaining 41/6. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
20. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[22, 0, 0, 0, -21, -21]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
-10/3
Sum all 6 observations with their multiplicities and divide by that positive count, obtaining -10/3. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
21. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[23, 23, 1, -22, -22, -22]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
-19/6
Sum all 6 observations with their multiplicities and divide by that positive count, obtaining -19/6. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
22. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[24, 24, 24, -1, -1, -23]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
47/6
Sum all 6 observations with their multiplicities and divide by that positive count, obtaining 47/6. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
23. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[25, 0, 0, 0, -24, -24]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
-23/6
Sum all 6 observations with their multiplicities and divide by that positive count, obtaining -23/6. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
24. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[26, 26, 1, -25, -25, -25]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
-11/3
Sum all 6 observations with their multiplicities and divide by that positive count, obtaining -11/3. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
25. Arithmetic Mean Retaining Multiplicities
The nonempty observation list is D=[27, 27, 27, -1, -1, -26]. Retain every repetition. Find the arithmetic mean. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
53/6
Sum all 6 observations with their multiplicities and divide by that positive count, obtaining 53/6. Do not average a deduplicated set or infer a population probability law.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-mean · candidate
26. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[0]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
0/1
The sorted list retaining repetitions is [0]. Apply the stated odd/even convention to obtain 0/1; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
27. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[-3, -3, -3]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
-3/1
The sorted list retaining repetitions is [-3, -3, -3]. Apply the stated odd/even convention to obtain -3/1; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
28. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[-4, 1, 8]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
1/1
The sorted list retaining repetitions is [-4, 1, 8]. Apply the stated odd/even convention to obtain 1/1; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
29. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[-2, -2, 5, 5]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
3/2
The sorted list retaining repetitions is [-2, -2, 5, 5]. Apply the stated odd/even convention to obtain 3/2; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
30. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[-7, -7, 2, 8, 8]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
2/1
The sorted list retaining repetitions is [-7, -7, 2, 8, 8]. Apply the stated odd/even convention to obtain 2/1; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
31. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[8, 8, 1, -7, -7, -7]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
-3/1
The sorted list retaining repetitions is [-7, -7, -7, 1, 8, 8]. Apply the stated odd/even convention to obtain -3/1; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
32. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[9, 9, 9, -1, -1, -8]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
4/1
The sorted list retaining repetitions is [-8, -1, -1, 9, 9, 9]. Apply the stated odd/even convention to obtain 4/1; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
33. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[10, 0, 0, 0, -9, -9]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
0/1
The sorted list retaining repetitions is [-9, -9, 0, 0, 0, 10]. Apply the stated odd/even convention to obtain 0/1; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
34. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[11, 11, 1, -10, -10, -10]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
-9/2
The sorted list retaining repetitions is [-10, -10, -10, 1, 11, 11]. Apply the stated odd/even convention to obtain -9/2; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
35. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[12, 12, 12, -1, -1, -11]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
11/2
The sorted list retaining repetitions is [-11, -1, -1, 12, 12, 12]. Apply the stated odd/even convention to obtain 11/2; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
36. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[13, 0, 0, 0, -12, -12]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
0/1
The sorted list retaining repetitions is [-12, -12, 0, 0, 0, 13]. Apply the stated odd/even convention to obtain 0/1; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
37. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[14, 14, 1, -13, -13, -13]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
-6/1
The sorted list retaining repetitions is [-13, -13, -13, 1, 14, 14]. Apply the stated odd/even convention to obtain -6/1; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
38. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[15, 15, 15, -1, -1, -14]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
7/1
The sorted list retaining repetitions is [-14, -1, -1, 15, 15, 15]. Apply the stated odd/even convention to obtain 7/1; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
39. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[16, 0, 0, 0, -15, -15]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
0/1
The sorted list retaining repetitions is [-15, -15, 0, 0, 0, 16]. Apply the stated odd/even convention to obtain 0/1; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
40. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[17, 17, 1, -16, -16, -16]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
-15/2
The sorted list retaining repetitions is [-16, -16, -16, 1, 17, 17]. Apply the stated odd/even convention to obtain -15/2; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
41. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[18, 18, 18, -1, -1, -17]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
17/2
The sorted list retaining repetitions is [-17, -1, -1, 18, 18, 18]. Apply the stated odd/even convention to obtain 17/2; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
42. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[19, 0, 0, 0, -18, -18]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
0/1
The sorted list retaining repetitions is [-18, -18, 0, 0, 0, 19]. Apply the stated odd/even convention to obtain 0/1; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
43. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[20, 20, 1, -19, -19, -19]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
-9/1
The sorted list retaining repetitions is [-19, -19, -19, 1, 20, 20]. Apply the stated odd/even convention to obtain -9/1; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
44. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[21, 21, 21, -1, -1, -20]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
10/1
The sorted list retaining repetitions is [-20, -1, -1, 21, 21, 21]. Apply the stated odd/even convention to obtain 10/1; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
45. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[22, 0, 0, 0, -21, -21]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
0/1
The sorted list retaining repetitions is [-21, -21, 0, 0, 0, 22]. Apply the stated odd/even convention to obtain 0/1; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
46. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[23, 23, 1, -22, -22, -22]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
-21/2
The sorted list retaining repetitions is [-22, -22, -22, 1, 23, 23]. Apply the stated odd/even convention to obtain -21/2; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
47. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[24, 24, 24, -1, -1, -23]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
23/2
The sorted list retaining repetitions is [-23, -1, -1, 24, 24, 24]. Apply the stated odd/even convention to obtain 23/2; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
48. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[25, 0, 0, 0, -24, -24]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
0/1
The sorted list retaining repetitions is [-24, -24, 0, 0, 0, 25]. Apply the stated odd/even convention to obtain 0/1; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
49. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[26, 26, 1, -25, -25, -25]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
-12/1
The sorted list retaining repetitions is [-25, -25, -25, 1, 26, 26]. Apply the stated odd/even convention to obtain -12/1; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
50. Exact Median of an Odd or Even Observation List
The nonempty observation list is D=[27, 27, 27, -1, -1, -26]. Retain every repetition. Find the median after sorting: one middle value for odd length, or the average of the two middle values for even length. Give a reduced fraction with positive denominator, retaining /1 for integers.
View answer and explanation
13/1
The sorted list retaining repetitions is [-26, -1, -1, 27, 27, 27]. Apply the stated odd/even convention to obtain 13/1; the even-length median need not be an observed value.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-median · candidate
51. Range of an Observation List
The nonempty observation list is D=[0]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
0
Subtract the least observation from the greatest to obtain 0. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
52. Range of an Observation List
The nonempty observation list is D=[-3, -3, -3]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
0
Subtract the least observation from the greatest to obtain 0. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
53. Range of an Observation List
The nonempty observation list is D=[-4, 1, 8]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
12
Subtract the least observation from the greatest to obtain 12. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
54. Range of an Observation List
The nonempty observation list is D=[-2, -2, 5, 5]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
7
Subtract the least observation from the greatest to obtain 7. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
55. Range of an Observation List
The nonempty observation list is D=[-7, -7, 2, 8, 8]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
15
Subtract the least observation from the greatest to obtain 15. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
56. Range of an Observation List
The nonempty observation list is D=[9, 9, 9, -1, -1, -8]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
17
Subtract the least observation from the greatest to obtain 17. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
57. Range of an Observation List
The nonempty observation list is D=[10, 0, 0, 0, -9, -9]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
19
Subtract the least observation from the greatest to obtain 19. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
58. Range of an Observation List
The nonempty observation list is D=[11, 11, 1, -10, -10, -10]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
21
Subtract the least observation from the greatest to obtain 21. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
59. Range of an Observation List
The nonempty observation list is D=[12, 12, 12, -1, -1, -11]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
23
Subtract the least observation from the greatest to obtain 23. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
60. Range of an Observation List
The nonempty observation list is D=[13, 0, 0, 0, -12, -12]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
25
Subtract the least observation from the greatest to obtain 25. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
61. Range of an Observation List
The nonempty observation list is D=[14, 14, 1, -13, -13, -13]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
27
Subtract the least observation from the greatest to obtain 27. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
62. Range of an Observation List
The nonempty observation list is D=[15, 15, 15, -1, -1, -14]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
29
Subtract the least observation from the greatest to obtain 29. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
63. Range of an Observation List
The nonempty observation list is D=[16, 0, 0, 0, -15, -15]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
31
Subtract the least observation from the greatest to obtain 31. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
64. Range of an Observation List
The nonempty observation list is D=[17, 17, 1, -16, -16, -16]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
33
Subtract the least observation from the greatest to obtain 33. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
65. Range of an Observation List
The nonempty observation list is D=[18, 18, 18, -1, -1, -17]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
35
Subtract the least observation from the greatest to obtain 35. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
66. Range of an Observation List
The nonempty observation list is D=[19, 0, 0, 0, -18, -18]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
37
Subtract the least observation from the greatest to obtain 37. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
67. Range of an Observation List
The nonempty observation list is D=[20, 20, 1, -19, -19, -19]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
39
Subtract the least observation from the greatest to obtain 39. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
68. Range of an Observation List
The nonempty observation list is D=[21, 21, 21, -1, -1, -20]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
41
Subtract the least observation from the greatest to obtain 41. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
69. Range of an Observation List
The nonempty observation list is D=[22, 0, 0, 0, -21, -21]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
43
Subtract the least observation from the greatest to obtain 43. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
70. Range of an Observation List
The nonempty observation list is D=[23, 23, 1, -22, -22, -22]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
45
Subtract the least observation from the greatest to obtain 45. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
71. Range of an Observation List
The nonempty observation list is D=[24, 24, 24, -1, -1, -23]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
47
Subtract the least observation from the greatest to obtain 47. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
72. Range of an Observation List
The nonempty observation list is D=[25, 0, 0, 0, -24, -24]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
49
Subtract the least observation from the greatest to obtain 49. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
73. Range of an Observation List
The nonempty observation list is D=[26, 26, 1, -25, -25, -25]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
51
Subtract the least observation from the greatest to obtain 51. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
74. Range of an Observation List
The nonempty observation list is D=[27, 27, 27, -1, -1, -26]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
53
Subtract the least observation from the greatest to obtain 53. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
75. Range of an Observation List
The nonempty observation list is D=[28, 0, 0, 0, -27, -27]. Retain every repetition. Find the range, defined as maximum minus minimum.
View answer and explanation
55
Subtract the least observation from the greatest to obtain 55. A singleton or constant list has range zero; this is neither variance nor a count of distinct values.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-observation-range · candidate
76. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[0]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{0}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {0}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
77. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[-3, -3, -3]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{-3}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {-3}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
78. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[-4, 1, 8]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{-4, 1, 8}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {-4, 1, 8}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
79. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[-2, -2, 5, 5]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{-2, 5}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {-2, 5}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
80. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[-7, -7, 2, 8, 8]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{-7, 8}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {-7, 8}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
81. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[8, 8, 1, -7, -7, -7]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{-7}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {-7}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
82. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[9, 9, 9, -1, -1, -8]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{9}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {9}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
83. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[10, 0, 0, 0, -9, -9]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{0}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {0}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
84. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[11, 11, 1, -10, -10, -10]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{-10}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {-10}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
85. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[12, 12, 12, -1, -1, -11]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{12}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {12}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
86. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[13, 0, 0, 0, -12, -12]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{0}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {0}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
87. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[14, 14, 1, -13, -13, -13]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{-13}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {-13}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
88. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[15, 15, 15, -1, -1, -14]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{15}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {15}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
89. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[16, 0, 0, 0, -15, -15]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{0}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {0}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
90. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[17, 17, 1, -16, -16, -16]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{-16}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {-16}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
91. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[18, 18, 18, -1, -1, -17]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{18}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {18}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
92. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[19, 0, 0, 0, -18, -18]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{0}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {0}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
93. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[20, 20, 1, -19, -19, -19]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{-19}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {-19}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
94. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[21, 21, 21, -1, -1, -20]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{21}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {21}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
95. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[22, 0, 0, 0, -21, -21]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{0}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {0}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
96. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[23, 23, 1, -22, -22, -22]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{-22}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {-22}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
97. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[24, 24, 24, -1, -1, -23]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{24}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {24}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
98. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[25, 0, 0, 0, -24, -24]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{0}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {0}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
99. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[26, 26, 1, -25, -25, -25]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{-25}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {-25}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
100. Set of All Maximum-Frequency Observed Values
The nonempty observation list is D=[27, 27, 27, -1, -1, -26]. Retain every repetition. Under the explicit all-frequency-maximizers convention, give every value with maximum frequency as an increasing set, including all values if every frequency is one.
View answer and explanation
{27}
Count frequencies with all input repetitions retained, then list each maximizing value once. The result is {27}; ties are not broken by choosing just one value, and this stated convention is distinct from textbooks calling an all-distinct list no mode.
Reviewed step-by-step derivation
Descriptive summaries of nonempty observation lists · qf-statistics-maximal-frequency-set · candidate
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