A vegetable distributor knows that during the month of August the weights of its tomatoes are normally distributed with a mean of 0 61 lb and a standard deviation of 0 15 lb See Example 2 in this section Fo each answer enter a number a What percent of the tomatoes weigh less than 0 76 lb b In a shipment of 6 000 tomatoes how many tomatoes can be expected to weigh more than 0 31 lb tomatoes c In a shipment of 4 500 tomatoes how many tomatoes can be expected to weigh from 0 31 lb to 0 91 lb tomatoes