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

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

According to the standard deviation rule, 128. Do not round. % of people have an IQ between 72 and

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solution Mean = 100 standard deviation = 14 P ( 72 <x<128) = P( 72-10 <z« 1207.7400) Pl- -2<za) P(Z <21 - PLZ <-2) =o.97725 - thank you

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