Revision as of 23:44, 1 May 2009 edit Dave.rudolf (talk \| contribs) 12 edits →Easiest online algorithm yet. ← Previous edit		Revision as of 02:14, 2 May 2009 edit undo McKay (talk \| contribs) Extended confirmed users 2,155 edits →Easiest online algorithm yet. Next edit →
Line 224: 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. No divide-by-zeros. Very few math operations. What more can you ask for? :) :: That is already in the article (the first algorithm), and the problem with it is stated there. [[User:McKay\|McKay]] ([[User talk:McKay\|talk]]) 02:14, 2 May 2009 (UTC)

Talk:Algorithms for calculating variance: Difference between revisions