Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 12.

Use the empirical rule to determine the following.

(a) What percentage of people has an IQ score between

88 and 112?

(b) What percentage of people has an IQ score less than

64 or greater than 136?

(c) What percentage of people has an IQ score greater than 124?

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Part 1

(a)

enter your response here%

(Type an integer or a decimal.)

Part 2

(b)

enter your response here%

(Type an integer or a decimal.)

Part 3

(c)

enter your response here%

(Type an integer or a decimal.)