Question: IQ scores can be described using a Normal distribution with a mean of 100 and a standard deviation of 15. Using the Empirical '68-95-99.7' Rule,

IQ scores can be described using a Normal distribution with a mean of 100 and a standard deviation of 15. Using the Empirical '68-95-99.7' Rule, what percent of IQ scores are between 70 and 130? Answer 1. 32% 2. 95% 3. 47.5% 4. 99.7%

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