People with z-scores of 2.5 or above on a certain aptitude test are sometimes classified as geniuses. If aptitude test scores

Question

People with z-scores of 2.5 or above on a certain aptitude test are sometimes classified as geniuses. If aptitude test scores have a mean of 100 and a standard deviation of 30 points, what is the minimum aptitude test score needed to be considered a genius?

Kunduz · Accepted Answer

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