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Question 566: The Observed Likelihood Uses Every Qualified Parameter Law On this page Original question and givens Definition and scope Step-by-step derivation Reverse checks Result This question review and source binding Return to catalogue page 3
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This teaching derivation has second-context AI mathematical and bilingual semantic review, limited to the model and assumptions stated in this question. It has no human review or new Lean proof and does not promote the original question or MKO to Canonical truth.
P1000-0566 · q-20261015-advance-20261116-r04-finite-maximum-likelihood-estimator-0016
Original question and givens Use complete theta labels=[a15, b15], observations=[x15, y15] and aligned exact probability rows=[[[3, 4], [1, 4]], [[1, 4], [3, 4]]]. Each theta row is nonnegative and sums to1. Sort labels with their associated rows/columns, never independently. Observed label=x15. Give (theta_values, observations, probability_rows, observed, likelihood_rows, certificate).
G001 — Use complete theta labels=[a15, b15], observations=[x15, y15] and aligned exact probability rows=[[[3, 4], [1, 4]], [[1, 4], [3, 4]]]. Each theta row is nonnegative and sums to1. Sort labels with their associated rows/columns, never independently. Observed label=x15. Give (theta_values, observations, probability_rows, observed, likelihood_rows, certificate).Definition and scope Each parameter law is normalized. Fix the observation and compare its column; likelihood is not a posterior.
Step-by-step derivation S001 · implies Before
Θ=[a15, b15]; Ω=[x15, y15] After
[[3/4, 1/4], [1/4, 3/4]] Conditions: none
Each row is one parameter law and each column an outcome; reorder probabilities together with labels.
Step identifiers and dependencies Rule: full_parametric_model · Uses: G001
S002 · calculation Before
P_a15(Ω) := sum(3/4, 1/4) After
P_a15(Ω) = 1 Conditions: none
Check this law's complete total mass first.
Step identifiers and dependencies Rule: exact_rational_arithmetic · Uses: G001, S001
S003 · calculation Before
P_b15(Ω) := sum(1/4, 3/4) After
P_b15(Ω) = 1 Conditions: none
Check this law's complete total mass first.
Step identifiers and dependencies Rule: exact_rational_arithmetic · Uses: G001, S002
S004 · implies Before
parameter=a15; observed=x15 After
L(a15;x15)=3/4 Conditions: none
Fix the observation and compare its column across parameters, without introducing a prior.
Step identifiers and dependencies Rule: fixed_likelihood_lookup · Uses: G001, S003
S005 · implies Before
parameter=b15; observed=x15 After
L(b15;x15)=1/4 Conditions: none
Fix the observation and compare its column across parameters, without introducing a prior.
Step identifiers and dependencies Rule: fixed_likelihood_lookup · Uses: G001, S004
S006 · implies Before
[[a15, 3/4], [b15, 1/4]] After
maximum=3/4; all argmax=[a15] Conditions: none
Retain every maximizer; for an all-zero column the complete argmax is still all parameters.
Step identifiers and dependencies Rule: complete_argmax · Uses: G001, S005
S007 · implies Before
likelihood indexed by fixed observed outcome After
not a posterior probability over parameters Conditions: none
Likelihoods across parameters need not sum to1; the original laws are the normalized rows.
Step identifiers and dependencies Rule: likelihood_scope · Uses: G001, S006
Reverse checks S007 · premise_and_result_audit — Retain every parameter and sample label; distinguish null, empty tables, zero distributions and tied optima.S006 · premise_and_result_audit — Retain every parameter and sample label; distinguish null, empty tables, zero distributions and tied optima.S005 · premise_and_result_audit — Retain every parameter and sample label; distinguish null, empty tables, zero distributions and tied optima.S004 · premise_and_result_audit — Retain every parameter and sample label; distinguish null, empty tables, zero distributions and tied optima.S003 · premise_and_result_audit — Recompute P_b15(Ω) with exact rational arithmetic, not rounded decimals.S002 · premise_and_result_audit — Recompute P_a15(Ω) with exact rational arithmetic, not rounded decimals.S001 · premise_and_result_audit — Retain every parameter and sample label; distinguish null, empty tables, zero distributions and tied optima.Result ([a15, b15], [x15, y15], [[3/4, 1/4], [1/4, 3/4]], x15, [[a15, 3/4], [b15, 1/4]], complete_normalized_finite_model_likelihood_table) The full substitutions and premise audits recover the original answer, retaining its field order and verdict meanings.
This question review and source binding Review date: 2026-10-26
Original questions, answers, step expressions, numeric ASTs and historical records are retained. Source candidate labels remain historical and are not overwritten as formal proof.
Source hashes and review receipts input commit: 0f7be61e2c22317a4075561dc822c87d881a50dboriginal question SHA-256: 476be96028e7472fd89373f6126c1522d102ca8824bb3b88aaac7650fb28caa5candidate record SHA-256: 4aec75b005ddce564d397fd7a7f74dee229425e41f5fe47efa6b316b335999d1semantic review receipt SHA-256: 6c2c6d46aded7582a11ac41a8c0b3bdde2669a53bdb6e796eea2039994a02772question-first witness SHA-256: 77e43898df9efdbf8094ad81fe4ab91cf4b4bd82f481eb9b4699b73cb4da612bLean: NOT_RUN · human review: NOT_PERFORMEDSame-source full JSON