Mathematics, 06.08.2019 04:20 ferg6

How many people do you need in a room so that you expect that there is going to be a shared birthday on a monday of the year (assume 52 mondays in a year and 365 days in a year)? by "expect" we mean on expectation, there should be 1 pair of people that have a shared birthday'

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How many people do you need in a room so that you expect that there is going to be a shared birthday...