SOLUTION: A new car that runs on electricity and gasoline is advertised as getting 65 mpg with a standard deviation of 6.9. If you test drive a car, what is the probability that it will get

Question 1050605: A new car that runs on electricity and gasoline is advertised as getting 65 mpg with a standard deviation of 6.9. If you test drive a car, what is the probability that it will get between 50 and 65 mpg?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A new car that runs on electricity and gasoline is advertised as getting 65 mpg with a standard deviation of 6.9. If you test drive a car, what is the probability that it will get between 50 and 65 mpg?
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z(50) = (50-65)/6.9 = -15/6.9 = -2.1739
z(65) = 0
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P(50 < x < 65) = P(-2.1739 < z < 0) = normalcdf(-2.1739,0) = 0.4851
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Cheers,
Stan H.
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