In: Statistics and Probability
5. 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 is 479 millimeters with a standard deviation of 39 millimeters. Assume these lengths are normally distributed.
a. What proportion of six-year-old trout are between 385 and 475 millimeters long?
b. Is it unusual for a six-year-old rainbow