A certain car model has a mean gas mileage of 34 miles per gallon (mpg) with a standard deviation of 5 mpg. A pizza delivery company buys 48 of these cars. What is the probability that the average mileage of the fleet is greater than 34.6 mpg?
Added by John W.
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We are given the mean gas mileage ($\mu$) of the car model: $\mu = 34$ mpg. Show more…
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