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Calculate the probability that the event occurs five times

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Reference no: EM131753910

Suppose that a symmetrical die is rolled 20 independent times, and each time we record whether or not the event 2,3,5 has occurred.

(a) What is the distribution of the number of times this event occurs in 20 rolls?

(b) Calculate the probability that the event occurs five times.

Reference no: EM131753910

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