Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard d (a) What percentage of people has an IQ score between 67 and 133'? (b) What percentage of people has an IQ score less than 67 or greater than 133? (c) What percentage of people has an IQ score greater than 122? eviation of 11. Use the empirical rule to determine the followin (a)D% (Type an integer or a decimal.) (b) D% (Type an integer or a decimal.) (c) Dye (Type an integer or a decimal.)