The annual rainfall in a certain region is approximately normally distributed with mean 42.8 inches and standard deviation 5.5 inches. Round answers to the nearest tenth of a percent. a) What percentage of years will have an annual rainfall of less than 44 inches? % b) What percentage of years will have an annual rainfall of more than 40 inches? % c) What percentage of years will have an annual rainfall of between 37 inches and 43 inches? %