Wednesday
April 23, 2014

Homework Help: probability

Posted by Sam on Wednesday, March 21, 2012 at 7:55pm.

Suppose an unfair coin comes up heads 52.2% of the time if it is flipped. If the coin is flipped 26 times, what is the probability that:

a) it comes up tails exactly 12 times?
b) it comes up heads more than 22 times?

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