Question 4
8 pts
The mean tread life of a tire is 30,000 miles with a standard deviation of 2...
Mathematics, 15.04.2021 20:30 jazzy2971
Question 4
8 pts
The mean tread life of a tire is 30,000 miles with a standard deviation of 2000 miles. Tire tread life is normally
distributed
a) Draw and label the Normal curve for tire tread life. (This will be checked on your work page that you are
submitting to the last question.)
b) What percent of tire treads will last less than 28,000 miles?
c) What percent of tire treads will last between 26,000 and 32,000 miles?
d) What percent of tire treads will last more than 34,000 miles?
Answers: 2
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