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The mean gas mileage for a particular hybrid car is56miles per gallon. Suppose that the gasoline mileage is approximately normally distributed with a standard deviation

The mean gas mileage for a particular hybrid car is56miles per gallon. Suppose that the gasoline mileage is approximately normally distributed with a standard deviation of5.5miles per gallon.

Determine the gasoline mileage, in miles per gallon, that make up the middle 75% of mileages for this hybrid car.

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