Poker Variance Calculation: A Guide to Win Rate Standard Deviation and Sample Size

Poker Variance Calculation: Guide to Winrate, Standard Deviation, and Sample Size

This article explains the concept of variance in poker from scratch, teaches you how to calculate the standard deviation of winrate, and determines the required sample size to obtain reliable results. Suitable for beginner to intermediate players to understand the nature of fluctuations and avoid common statistical pitfalls.