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A university found that 20 of its students withdraw without

A university found that 20% of its students withdraw without completing the introductory statistics course. Assume that 20 students registered for the course.

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.

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.

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