An automobile manufacturer introduces a new model than

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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(A) An automobile manufacturer introduces a new model that averages 27 miles per gallon in the
city. A person who plans to purchase one of these new cars wrote the manufacturer for the details
of the tests and found out that the standard deviation is 3 miles per gallon. Assume that in-city
mileage is normally distributed.
a) What is the probability that the person will purchase a car that averages less than 20
miles per gallon for in-city driving?
Transcribed Image Text:(A) An automobile manufacturer introduces a new model that averages 27 miles per gallon in the city. A person who plans to purchase one of these new cars wrote the manufacturer for the details of the tests and found out that the standard deviation is 3 miles per gallon. Assume that in-city mileage is normally distributed. a) What is the probability that the person will purchase a car that averages less than 20 miles per gallon for in-city driving?
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