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The Average Gas Mileage of a Certain Model Car Is

Question 42

Multiple Choice

The average gas mileage of a certain model car is 28.0 miles per gallon. If the gas mileages are normally distributed with a standard deviation of 0.45 miles per gallon, find the probability that a car has a gas mileage of between 27.8 and 28.2 miles per gallon.


A) 0.343
B) 0.157
C) 0.403
D) 0.172

Correct Answer:

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