Scores of an IQ test have a​ bell-shaped distribution with a mean of 100 and a standard deviation of 15. Use the empiric

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answerhappygod
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Scores of an IQ test have a​ bell-shaped distribution with a mean of 100 and a standard deviation of 15. Use the empiric

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Scores of an IQ test have a​ bell-shaped distribution witha mean of 100 and a standard deviationof 15. Use the empirical rule to determine thefollowing.
​(a) What percentage of people has an IQ scorebetween 85 and 115​?
​(b) What percentage of people has an IQ score lessthan 85 or greater than 115​?
​(c) What percentage of people has an IQ score greaterthan 130​?
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