Seattle, Washington, averages u. = 34 inches of annual precipitation. Assuming that the distribution of precipi- tation amounts is approximately normal with a stan- dard deviation of o = 6.5 inches, determine whether each of the following represents a fairly typical year, an extremely wet year, or an extremely dry year. a. Annual precipitation of 41.8 inches b. Annual precipitation of 49.6 inches c. Annual precipitation of 28.0 inches