Talk:Algorithms for calculating variance: Difference between revisions

Revision as of 23:42, 1 May 2009

Revision as of 23:44, 1 May 2009

Line 223:

- number of samples

then you have an easy way to compute the variance as you go. You also have an easy way to combine the variances of two populations. Just add the sums (and sums of squares) and the counts. Bam!No divide-by-zeros. Very view math operations. What more can you ask for? :)