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A university found that 10% of its students withdraw without completing the introductory statistics course. Assume...

A university found that 10% of its students withdraw without completing the introductory statistics course. Assume that 20 students registered for the course. (Round your answers to four decimal places.)

(a.) Compute the probability that 2 or fewer will withdraw.

(b.) Compute the probability that exactly 4 will withdraw.

(c.) Compute the probability that more than 3 will withdraw.

(d.) Compute the expected number of withdrawals.

Math   Statistics-And-Probability   
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