Scores of an IQ test have a bell-shaped distribution with a mean of 100 and...
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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 58 and 142?
(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?
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