February 28, 2017

Homework Help: math

Posted by Andrew on Tuesday, November 20, 2012 at 8:43pm.

for n repeated independent trials, with constant probability of success p for all trials, find the probability of exactly x succes n=20,p=1/8, x=2
I know the answer but I do not know how to get to that. Answer is 0.268 should I reduce fraction?

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