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A Certain Car Model Has a Mean Gas Mileage of 31

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Question 40
Multiple Choice
arrowQuestion 40arrow
Multiple Choice

A certain car model has a mean gas mileage of 31 miles per gallon (mpg) with a standard deviation 3 mpg. A pizza delivery company buys 35 of these cars. What is the probability that the average mileage of the fleet is between 30.9 and 31.2 mpg?


A)0.2310
B)0.6517
C)0.4207
D)0.7690

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