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 less than 40 minutes?
A)0.50
B)0.20
C)0.80
D)1.00
E)None of the above

Question

Quizplus · Accepted Answer

In a normal distribution, the mean divides the distribution into two equal halves. Therefore, the probability of a value being less than the mean (40 minutes) is 0.50.

The Time Required to Travel Downtown at 10 A