c) expected number of policies she will sell and what is the standard deviation? 2) The lengths of the sardines received by a certain cannery have a mean of 4.62 inches and a standard deviation of .23 inch. Assume the population is normally distributed. What percent of sardines is a) over 5 inches in length? b) between 4.35 and 4.85 inches in length? 3) In a sample of 40 adults, the average number of seconds it took to open a temper-resistant aspirin