Current time:0:00Total duration:6:24

0 energy points

# Simulation showing bias in sample variance

Simulation by Peter Collingridge giving us a better understanding of why we divide by (n-1) when calculating the unbiased sample variance. Simulation available at: http://www.khanacademy.org/cs/challenge-unbiased-estimate-of-population-variance/1169428428. Created by Sal Khan.