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A Gasoline Tank for a Certain Model Car Is Designed

Question 31

Essay

A gasoline tank for a certain model car is designed to hold 12 gallons of gas. Suppose
that the actual capacity of gas tanks in cars of this type is well approximated by a
normal distribution with mean 12.0 gallons and standard deviation 0.2 gallons. What
is the approximate probability that a randomly selected car of this model will have a
gas tank that holds at most 11.7 gallons?

Correct Answer:

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