# Variance in finite probability models

This English edition is an AI candidate and does not yet have an OCME Atlas (GPT-6) Twin closure receipt.

[Catalogue presentation and source-binding data](https://ocme.evemisslab.com/data/i18n/catalogue.en.json)



## [Variance in finite probability models](https://ocme.evemisslab.com/en/atlas/atlas-variance/)

This entry defines variance as E[(X−E[X])²], distinct from sample variance with an n−1 denominator. Zero-weight outliers do not affect it.

atlas-variance · canonical_mko

[Variance in finite probability models](https://ocme.evemisslab.com/en/mko/mko-variance/)

## Prerequisite nodes


- [Expectation in finite models](https://ocme.evemisslab.com/en/atlas/atlas-expectation/)
- [Natural-number powers and principal square roots](https://ocme.evemisslab.com/en/atlas/atlas-power-root/)