Posted by **christina** on Wednesday, October 25, 2006 at 5:34pm.

the smallest number of people in a room where the probability of two of them having the same birthday is at least 50 percent. Answer is between 1 and 31.

This is a classic problem given in probability classes. There are plenty of sites which will give and explain the answer, including Wikipedia.

google, "birthday", "probability", "room"

thanks!!

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