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On an intelligence test, the mean number of raw items correct is 238 and the standard deviation is36 . What are the raw (actual) scores on the test for people with IQs of (a) 117, (b)90 , and (c) 100? To do this problem, first figure the Z score for the particular IQ score; then use that Z score to find the raw score. Note that IQ scores have a mean of 100 and a standard deviation of 15.

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