Iq score for adults age is 25 - 45 have a bell shape, Ask an Expert

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Compute required probabilities based on Empirical Rule.

Iq score for adults age is 25 - 45 have a bell shape distribution with the mean of 100 and the standard deviation of 15. By the empirical rule what percentage of adults is 25 - 45 has iq score bet 70 and 130.

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