Suppose that the waiting time for a license plate renewal at a local office of a state motor vehicle department has been found to be normally distributed with a mean of 30 minutes and a standard deviation of 8 minutes. What is the probability that a randomly selected individual will have a waiting time of no more than 22 minutes?
A) .1587
B) .9977
C) .8413
D) .0023

Question

Quizplus · Accepted Answer

P(x ≤ 22) = p= p(z < −1) = .1587

Suppose That the Waiting Time for a License Plate Renewal