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100000 people participated in a certain lottery. If each person is equally likely to win the...

100000 people participated in a certain lottery. If each person is equally likely to win the lottery, find
the probability that are no more than 2 winners (hint: rare event).

Math   Statistics-And-Probability   
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This is a case of Poisson Distribution ( rare event)

First we could visualize this event as Binomial Distribution then we can tranform this into a Poisson Distribution.

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