The Wechsler Adult Intelligence Scale (WAIS) is an IQ test. The scores on the WAIS for the 20 to 34 years age group are approximately normally distributed with a mean of 110 and a standard deviation of 15. The scores for the 60 to 64 years age group are approximately normally distributed with a mean of 90 and a standard deviation of 15. Sarah, who is 30, scores 130 on the WAIS. Her mother, who is 60, takes the test and scores 110. Fill in the blanks: Sarah's standard score is and her mother's standard score is . (Give your answers to one decimal place.)

MATLAB: An Introduction with Applications
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The Wechsler Adult Intelligence Scale (WAIS) is an IQ test. The scores on the WAIS for the 20 to
34 years age group are approximately normally distributed with a mean of 110 and a standard
deviation of 15. The scores for the 60 to 64 years age group are approximately normally distributed
with a mean of 90 and a standard deviation of 15. Sarah, who is 30, scores 130 on the WAIS. Her
mother, who is 60, takes the test and scores 110.
Fill in the blanks:
Sarah's standard score is
and her mother's standard score is
. (Give your answers to one decimal place.)
Transcribed Image Text:The Wechsler Adult Intelligence Scale (WAIS) is an IQ test. The scores on the WAIS for the 20 to 34 years age group are approximately normally distributed with a mean of 110 and a standard deviation of 15. The scores for the 60 to 64 years age group are approximately normally distributed with a mean of 90 and a standard deviation of 15. Sarah, who is 30, scores 130 on the WAIS. Her mother, who is 60, takes the test and scores 110. Fill in the blanks: Sarah's standard score is and her mother's standard score is . (Give your answers to one decimal place.)
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