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Birthday problem (en.wikipedia.org)
submitted 1 month ago by to c/wikipedia@lemmy.world
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In probability theory, the birthday problem asks for the probability that, in a set of n randomly chosen people, at least two will share the same birthday. The birthday paradox is the counterintuitive fact that only 23 people are needed for that probability to exceed 50%.

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[–] 7 points 1 month ago* (1 child)

I work in a company of about 80 people, and there are at least three sets of people with matching birthdates.

I say at least because I don't know everyone's birth date.

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