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Scores of an IQ test have abell-shaped distribution with a mean of 100 and a standard deviation of 14 Use the empirical rule to determine
Scores of an IQ test have abell-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 72 and 128?
(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 114?
(a)__% (Type an integer or adecimal.)
(b)__% (Type an integer or adecimal.)
(c)__% (Type an integer or adecimal.)
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