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

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. If required, round your answer to four decimal places.
(b) Compute the probability that exactly 4 will withdraw. If required, round your answer to four decimal places.
(c) Compute the probability that more than 3 will withdraw. If required, round your answer to four decimal places.
(d) Compute the expected number of withdrawals.



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