The Weekend Edition Saturday Math Guy, Stanford professor Keith Devlin, has a problem. In fact, he has more than one... which he's happy to share with Scott Simon. What is the probability that in a ...

In a recent paper – Birth, Death, Coincidences and Occupancies: Solutions and Applications of Generalized Birthday and Occupancy Problems – Miami University professor of Electrical and Computer ...

How many people do you have to put into a room before you are guaranteed that at least two of them share a birthday? We all know and love the blissful feeling of winning an argument. Well, trust me, ...

Here's a fun brain teaser: How large does a random group of people have to be for there to be a 50% chance that at least two of the people will share a birthday? The answer is 23, which surprises many ...

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