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 between 15 and 45 minutes?
A) 1.00
B) .9699
C) .5000
D) .9392

Question

Quizplus · Accepted Answer

P(15 ≤ x ≤ 45) = P(−1.875 ≤ z ≤ 1.875) = .9696 − .0304 = .9392

Suppose That the Waiting Time for a License Plate Renewal