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Need help understanding this The gas mileages (in miles per gallon) for 30 cars are shown in the frequency distribution, Approximate the mean of the

Need help understanding this

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The gas mileages (in miles per gallon) for 30 cars are shown in the frequency distribution, Approximate the mean of the frequency Gas Mileage distribution. (in miles per gallon) Frequency 25-30 10 31-36 11 37-42 4 43-48 5 The approximate mean of the frequency distribution is (Round to one decimal place as needed.)

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