Homework: HW Chapter 3 Question 15, 3.2.29 HW Score: 53.24 Part 2 of 3 O Points: 0 of 1 Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 14. Use the empirical rule to determine the following. (a) What percentage of people has an IQ score between 86 and 114? (b) What percentage of people has an IQ score less than 86 or greater than 114? (c) What percentage of people has an IQ score greater than 142? . . . .. (a) 68 % (Type an integer or a decimal.) % (Type an integer or a decimal.)