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Mathematics, 08.09.2021 03:10 coolkason

Scores of an IQ test have a​ bell-shaped distribution with a mean of 100 and a standard deviation of 18. Use the empirical rule to determine the following. ​(a) What percentage of people has an IQ score between 64 and 136​?
​(b) What percentage of people has an IQ score less than 46 or greater than ​154?
​(c) What percentage of people has an IQ score greater than 118​?

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