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Determining automobile mileage ratings

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In determining automobile mileage ratings, it was found that the mpg ( X ) for a certain model is normally distributed, with a mean of 30 mpg and a standard deviation of 1.5 mpg. Find the following:

a. P(X 6 28)

b. P(28 6 X 6 32)

c. P(X 7 33)

d. P(X 6 31)

e. The mileage rating that the upper 5% of cars achieve

Reference no: EM131251576

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