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    Probability of Gas Mileage

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    The average gas mileage of a certain model car is 30 miles per gallon. If the gas mileages are normally distributed with a standard deviation of 2.1, What is the probability that a car has a gas mileage of between 29.8 and 30.6 miles per gallon?

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    Solution Preview

    Let X be the gas mileages. Then we know that X follows a normal distribution with mean 30 and ...

    Solution Summary

    This solution calculates the probability of a car having a gas mileage between 29.8 and 30.6 miles per gallon. All steps are shown for better understanding.