The time required to travel downtown at 10 a.m.on Monday morning is known to be normally distributed with a mean of 40 minutes and a standard deviation of 5 minutes.What is the probability that it will take more than 40 minutes?
A)0.2500
B)0.0625
C)1.000
D)0.5000
E)None of the above

Question

Quizplus · Accepted Answer

Since the mean is 40 minutes, the probability of taking more than 40 minutes is 0.5000, as it is the upper half of the normal distribution.

The Time Required to Travel Downtown at 10 A