SOLUTION: 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 pr

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Question 841053: 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 (to 3 decimals).
b.) Compute the probability that exactly 4 will withdraw (to 4 decimals).
c.) Compute the probability that more than 3 will withdraw (to 4 decimals).
d.) Compute the expected number of withdraws.
Answer by ewatrrr(24785) (Show Source):
You can put this solution on YOUR website!

Hi,
A university found that 20% of its students withdraw without completing the introductory statistics course.
Assume that 20 students registered for the course.
Using TI Calculator
a.) Compute the probability that 2 or fewer will withdraw (to 3 decimals). binomcdf(20, .20, 2).
b.) Compute the probability that exactly 4 will withdraw (to 4 decimals).binompdf(20, .20, 2).
c.) Compute the probability that more than 3 will withdraw (to 4 decimals)1 - .binomcdf(20, .20, 3).
d.) Compute the expected number of withdraws.