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February 17, 2013 2:18 pm at 2:18 pm
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Torah613Torah
Participant
Squeak: Flipping heads is 1/1024, and his Z-score of 3.16 is about 1 in 1268 (according to one online calculator). Z score is just a measure of how many standard deviations the result is from the mean, and it sounds about right.
His math is correct since he is doing it to 100 quarters, not 1 quarter.