The number of driving miles before a certain kind of tire begins to show wear is on the average of 16,800 miles with standard deviation of 3,300 miles. A car rental agency buys 36 of these tires for replacement purposes and puts each one on a different car. a. What is the probability that the 36 tires will average less than 16,000 miles until they begin to show wear? b. What is the probability that the 36 tires will average more than 18,000miles until they begin to show wear?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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The number of driving miles before a certain kind of tire begins to show wear is
on the average of 16,800 miles with standard deviation of 3,300 miles. A car
rental agency buys 36 of these tires for replacement purposes and puts each
one on a different car.
a. What is the probability that the 36 tires will average less than 16,000 miles
until they begin to show wear?
b. What is the probability that the 36 tires will average more than 18,000miles
until they begin to show wear?
Transcribed Image Text:The number of driving miles before a certain kind of tire begins to show wear is on the average of 16,800 miles with standard deviation of 3,300 miles. A car rental agency buys 36 of these tires for replacement purposes and puts each one on a different car. a. What is the probability that the 36 tires will average less than 16,000 miles until they begin to show wear? b. What is the probability that the 36 tires will average more than 18,000miles until they begin to show wear?
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