Priors

Counting and complements · Sports

Birthdays in the locker room

A team's locker room has 23 people in it. Assume birthdays are independent and uniform over 365 days (ignore leap years). What is the probability that at least two of them share a birthday?

Answer with a probability. First lock in a gut guess with an 80% range, then solve it properly, then watch a simulation settle on the truth.

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