Scores of an lQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 16. Use the empirical rule to determine the following. (a) What percentage of people has an IQ score...

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Extracted text: Scores of an lQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 16. Use the empirical rule to determine the following. (a) What percentage of people has an IQ score between 52 and 148? (b) What percentage of people has an IQ score less than 84 or greater than 116? (c) What percentage of people has an IQ score greater than 116? (a) % (Type an integer or a decimal.) (b)% (Type an ìnteger or a decimal.) (c) % (Type an integer or a decimal.)