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Norms for a New Test of Mental Ability Were Obtained

Question 24

Multiple Choice

Norms for a new test of mental ability were obtained from a large sample of the general population.The mean of the test was set to 100 and the standard deviation was 15.Approximately what percentage of the population would fall within the range bounded by scores of 85 and 115?


A) 20 percent
B) 68 percent
C) 2 percent
D) 98 percent

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