The Wechsler Adult Intelligence Scale is an IQ test. Scores on the WAIS for the 20 30 age group are approximately Normally distributed with the mean 110 and standard deviation 15. Scores for the 60 64 age group are approximately Normally distributed with mean 90 and standard deviation 15. Sarah who is 30 scores 130 on the WAIS. Her mother is 60 takes the test and scores 115. A. Express both scores as standard scores that show where each women stands within her age group. B. Who scored higher relative to her age group. Saran or her mother? Who has the higher absolute level of the variable measured by the test.

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