Image talk:Sketch-4race-transparent.png

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Confused, where is the data from? - Ta bu shi da yu 6 July 2005 08:45 (UTC)

what are the sigmas of these distributions? Have they been assumed to be uniform, and if so, on what grounds and at what value? 81.63.63.37 16:16, 19 October 2005 (UTC)

Agreed, where is the source? --Stephan Schulz (talk) 22:44, 22 March 2008 (UTC)