This was the first time I'd ever heard about biased/unbiased sample variances, all inspired by the original web page and seeing the (N-1) in the standard deviat

This was the first time I'd ever heard about biased/unbiased sample variances, all inspired by the original web page and seeing the (N-1) in the standard deviation formula. This inspired me to go off and read about Bessel's correction in wikipedia. Thank you, Evan Miller! Your web page is great, it taught me new stuff from the very first formula. Much appreciated.