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12 . If the mileage per gallon for a car is normally distributed , 32 mpg has a z score of 1 . 2 ,

12 . If the mileage per gallon for a car is normally distributed , 32 mpg has a z score of 1 . 2 , and 24 mpg has a Z score of - . 4 , what is the mean mpg of the distribution ? 4 ) 28 B ) 26 ( ) 30 D ) 38

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