Assuming that all years have 365 days and all birthdays
Chapter 9, Problem 32E(choose chapter or problem)
Problem 32E
Assuming that all years have 365 days and all birthdays occur with equal probability, how large must n be so that in any randomly chosen group of n people, the probability that two or more have the same birthday is at least 1/2? (This is called the birthday problem. Many people find the answer surprising.)
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