About 95% of the population have IQ scores that are within _____ points above or below 100.
A)30
B)10
C)50
D)70

Name: About 95% of the population have IQ scores that are within _____ points above or below 100. A)30 B)10 C)50 D)70
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The standard deviation for IQ scores is 15, and about 95% of the population falls within two standard deviations of the mean IQ score, which is 100. Two standard deviations above and below the mean equals 30 points (15 x 2 = 30).

About 95% of the Population Have IQ Scores That Are