Fish story: According to a report by the U.S. Fish and Wildlife Service, the mean length of sixyearold rainbow trout in the Arolik River in Alaska is 482 millimeters with a standard deviation of 42 millimeters. Assume these lengths are normally distributed. (a) What proportion of sixyearold rainbow trout are less than 450 millimeters long? {b} What proportion of sixyearold rainbow bout are between 410 and 510 millimeters long? (c) Is it unusual for a sixyearold rainbow trout to be less than 413 millimeters long? Round the answers to at least four decimal places. The proportion of sixyearold rainbow trout less than 450 millimeters long is D