The tread life of a particular brand of tire is a random variable best described by a normal distribution with a mean of 60,000 miles and a standard deviation of 2800 miles. What is the probability a particular tire of this brand will last longer than 57,200 miles?

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.3: Special Probability Density Functions
Problem 7E
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The tread life of a particular brand of tire is a
random variable best described by a normal
distribution with a mean of 60,000 miles and
a standard deviation of 2800 miles. What is
the probability a particular tire of this brand
will last longer than 57,200 miles?
Transcribed Image Text:The tread life of a particular brand of tire is a random variable best described by a normal distribution with a mean of 60,000 miles and a standard deviation of 2800 miles. What is the probability a particular tire of this brand will last longer than 57,200 miles?
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