# Z-Score and Percentile in Excel

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In determining automobile mileage ratings, it was found that the mpg in the city (x) for a certain model is normally distributed, with a mean of 24 mpg and a standard deviation of 1.0 mpg. Find the following:

a. P(X) < 25)

b. P(22 < X < 24)

c. P(X > 26)

d. P(X < 23)

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

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