The average U.S. yearly capita consumption of citrus fruit is 26.8 pounds. Suppose that the distribution of fruit amounts consumed...

The average U.S. yearly capita consumption of citrus fruit is 26.8 pounds. Suppose that the distribution of fruit amounts consumed is bell shaped with a standard deviation equal to 4.2 pounds.

a. What percentage of Americans would you expect to consume more than 31 pounds of citrus fruit per year? b. What percentage of Americans would you expect to consume less than 18.4 pounds of citrus fruit per year?