April 13th, 2010

Why you need to be very careful with election statistics

I think I had already come across at least one reference to Voter Power, a website designed to show you (if you are a British voter) how much your vote is "worth" in the forthcoming general election. However, it was a post by the_magician that got me interested enough to look. My verdict? Nice graphics, they have calculated an impressive set of statistics - but unfortunately the content is very much an example of what can go wrong if you concentrate on figures to the exclusion of everything else.

By the way, declaration of interest: I'm a Labour Party member and will occasionally be out campaigning over the next few weeks - but I don't think that influences what I say below (much).
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