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Assuming a normal distribution, what is the z-score associated with the 90th percentile?

AND

 

 

Examine the intelligence quotient, or IQ, as it is defined by the formula:

 

“intelligence quotient = 100 * (mental age/chronological age)”

 

What would be the IQ if a person’s chronological age equals their mental age? 

 

    • 11 years ago
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