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 proportion of hybrids gets over 61 miles per gallon? (b) What proportion of hybrids gets 53 miles per gallon or less? (c) What proportion of hybrids gets between 59 and 62 miles per gallon? (d) What is the probability that a randomly selected hybrid gets less than 45 miles per gallon? a Click the icon to view a table of areas under the normal curve. (a) The proportion of hybrids that gets over 61 miles per gallon is (Round to four decimal places as needed.)