A vegetable distributor knows that during the month of august, the weights of its tomatoes are normally distributed with a mean Of 0.62 lb and a standard deviation of 0.15.

A ) What percent of the tomatoes weight less than 0.77 lb?
B ) In a shipment of 8000 tomatoes can be expected to weight more then 0.32 lb?
C ) in a shipment of 3500 tomatoes how many tomatoes can be expected to weight from 0.32 lb to 0.92 lb