The Wechsler Adult Intelligence Scale (WAIS) is an IQ test. The scores on the WAIS for the 20 to34 years age group are approximately normally distributed with a mean of 110 and a standarddeviation of 15. The scores for the 60 to 64 years age group are approximately normally distributedwith a mean of 90 and a standard deviation of 15. Sarah, who is 30, scores 130 on the WAIS. Hermother, who is 60, takes the test and scores 110.Fill in the blanks:Sarah's standard score isand her mother's standard score is. (Give your answers to one decimal place.)

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Answered: The Wechsler Adult Intelligence Scale…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Click the score that is one standard deviation below the mean. IQ Test Scores 30 40 50 60 70 80 90 100 110 120 130 140 150 160
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There are two major tests of readiness for college, the ACT and the SAT. ACT scores are reported on a scale from 1 to 36. The distribution of ACT scores is approximately Normal, with mean of 21.9 and standard deviation of 5.8. SAT scores are reported on a scale from 400 to 1600. The distribution of SAT scores is approximately Normal, with mean of 1,059 and standard deviation of 203. What ACT scores make up the top 10% of all the scores? Round to the nearest whole number.
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