It seems as though this should be a subpage and would be a Statistics resource rather than a math resource. --AFriedman 04:00, 7 February 2009 (UTC)
I agree, also. I have moved the variance/SD content to Variance and standard deviation (actually I decided to copy the content over, rather than moving with the history, b/c the history of this page is quite variable), and will make some improvements in layout and presentation of the content.
I've been thinking about the best use of this page. I wonder if we should use it as a hub of information about various math related projects and resources.