The Birthday Problem Revisited

by Eric Malm, Gail Nord, James Colin Hill, and John Nord

College Mathematics Journal
March, 2006

Subject classification(s): Statistics and Probability | Probability | Elementary Probability
Applicable Course(s): 6.1 Probability & Statistics | 7.2 Probability

A variation of the birthday problem is being considered: what is the probabibility of $2$ out of $n$ people to have their birthday on a particular day? Furthermore, this capsule generalizes the result to $k$ out of $n$ people.

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