Exhibit 6-8
The life expectancy of a particular brand of tire is normally distributed with a mean of 40,000 and a standard deviation of 5,000 miles.
-Refer to Exhibit 6-8. What is the probability that a randomly selected tire will have a life of exactly 47,500 miles?
A)0.0000
B)0.9332
C)0.0668
D)0.4993

Question

Quizplus · Accepted Answer

Since the tire life is a continuous variable, the probability of a tire having a life of exactly 47,500 miles is 0. This is because the probability of any specific value in a continuous distribution is always zero.

Exhibit 6-8 The Life Expectancy of a Particular Brand of Tire Is