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In: Statistics and Probability

5. According to a report by the U.S. Fish and Wildlife Service, the mean length of...

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

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