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13 IQ scores on the WAIS test approximate a normal curve with a mean of 100 and a standard deviation of 15.
5.13 IQ scores on the WAIS test approximate a normal curve with a mean of
100 and a standard deviation of 15. What IQ score is identified with
(a) the upper 2 percent, that is, 2 percent to the right (and 98 percent to the left)?