SOLUTION: The mean gas mileage for a hybrid car is 57 miles per gallon. Suppose that the gasoline mileage is approximately normally distributed with a standard deviation of 3.5 miles per gal

Question 946898: The mean gas mileage for a hybrid car is 57 miles per gallon. Suppose that the gasoline mileage is approximately normally distributed with a standard deviation of 3.5 miles per gallon.
A. What is the probability that a randomly selected hybrid gets more that 61 miles per gallon? 0.127
B. What is the probability that a randomly selected hybrid gets 52 miles per gallon or less?
C. What is the probability that a randomly selected hybrid gets between 58 and 61 miles per gallon? 0.261
D. What is the probability that a randomly selected hybrid gets less than 45 miles per gallon?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Find the z score for each scenario, then use the normal distribution function.

a)
, so then it's for greater than 61.
b) so then
c) and
So then
d) so then
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