Part 1. The distribution of IQ (Intelligence Quotient) is approximately normal in shape with a mean...

Part 1. The distribution of IQ (Intelligence Quotient) is approximately normal in shape with a mean of 100 and a standard deviation of 17.

According to the standard deviation rule, only % of people have an IQ over 117.

Part 2.

The distribution of IQ (Intelligence Quotient) is approximately normal in shape with a mean of 100 and a standard deviation of 15.

According to the standard deviation rule, % of people have an IQ between 70 and 130.

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orchestra answered 1 year ago

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