Assume the weights of women between 16 and 30 years of age are normally distributed with a mean of 120 pounds and a standard deviation of 18 pounds.

If 100 women are selected at random from this population, how many would you expect to have the following weights (round off to the nearest integer):

a. Between 90 and 145 pounds

b. Less than 85 pounds

c. More than 150 pounds

d. Between 84 and 156 pounds