pjm2p4aigcille pjm2p4aigcille

22-05-2017
Mathematics

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What is the probability in a room of 20 people that at least 2 people have the same birthday?

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nicholas2021265 nicholas2021265

22-05-2017

the probability is 100(1-e^(-x^2/(2*365))
for 20 people it is about 42 percent

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