Scores of an IQ test have a​ bell-shaped distribution with amean of 100 and a standard deviation of 17. Use the empirical ruleto determine the following. ​(a) What percentage of people has anIQ score between 66 and 134​? ​(b) What percentage of people has anIQ score less than 49 or greater than 151​? ​(c) What percentage ofpeople has an IQ score greater than 134​?