Question: In determining automobile-mileage ratings, it was found that the mpg (X) for a certain model is normally distributed, with a mean of 33 mpg and a standard deviation of 1.7 mpg. Find the following:
a. P (X < 30)
b. P (28 < X < 32)
c. P (X > 35)
d. P(X > 31 )
e. The mileage rating that the upper 5% of cars achieve.