Fish story:According to a report by the U.S. Fish and Wildlife Service, the mean length of six-year-old rainbow trout in the Arolik River in Alaska is477 millimeters with a standard deviation of 39 millimeters. Assume these lengths are normally distributed.

(a) What proportion of six-yeaPold rainbow trout are less than 453 millimeters long? (b) What proportion of six-year-old rainbow trout are between 415 and 516 millimeters long? (c) Is it unusual for a six-year-old rainbow trout to be less than 378 millimeters long? Round the answers to at least four decimal places. Part:0l3 The proportion of six-year-old rainbow trout less than 458 millimeters long is D