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BGonline.org Forums
Winning PR vs Losing PR--one thing impossible to measure
Posted By: Rick Janowski In Response To: Winning PR vs Losing PR--one thing impossible to measure (Karol Szczerek)
Date: Saturday, 30 January 2016, at 7:15 p.m.
Hi Karol,
I estimate the standard deviation to be about 17%, and there are indeed many players were the result is reversed.
From the sample size taken, the standard deviation of the mean is about 2.5%. Consequently, assuming my calculations are correct, there is about a 98% probability that for the overall population of players, PR(W) is better than PR(L).
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