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anonymous

  • 5 years ago

One measure of intelligence is the Stanford-Binet Intelligence Quotient (IQ). A study of a certain population finds that IQ scores have a bell-shaped distribution with a mean of 115 and a standard deviation of 5. What percentage of persons has an IQ score greater than 120? Round your answer to the nearest integer.

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  1. anonymous
    • 5 years ago
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    idk.............

  2. anonymous
    • 5 years ago
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    Don't answer if you have nothing productive to say. Anyways you posted a similar problem and you got the answer to that one. Apply what you did to this problem to get the answer.

  3. anonymous
    • 5 years ago
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    they never told me how to understand it...when i looked at the book i could not understand the the graph. I missed the class that this homework was due on.

  4. anonymous
    • 5 years ago
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    Last question it was the percent between one standard deviation. In this question you want the percent over 1 standard deviation.

  5. anonymous
    • 5 years ago
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    im really sorry but im still confused with the empirical rule it seems that there can only be three answers 68% 95% and 99.7% but that doesnt seem right

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