SOLUTION: Suppose that IQ scores have a bell-shaped distribution with a mean of 97 97and a standard deviation of 12. Using the empirical rule, what percentage of IQ scores are greater than

Question 1133522: Suppose that IQ scores have a bell-shaped distribution with a mean of 97
97and a standard deviation of 12. Using the empirical rule, what percentage of IQ scores are greater than 133?
Answer by rothauserc(4718) (Show Source): You can put this solution on YOUR website!
(133 - 97)/12 = 3 standard deviations
:
The 68-95-99.7 rule tells us that 68% of a Normal Distribution can be found within 1 standard deviation, 95% can be found within 2 standard deviations and 99.7% can be found within 3 standard deviations
:
Therefore, 100 - 99.7 = 0.3% of IQ scores are greater than 133
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