If a child's IQ score falls exactly two deviations above the mean for children in his or her age range, then his or her deviation IQ score is
A) 68.
B) 84.
C) 116.
D) 132.
E) 148.

Question

Quizplus · Accepted Answer

The standard deviation for IQ scores is 15. A score two standard deviations above the mean (which is 100) would be 100 + (2 * 15) = 130. However, since none of the options exactly match this calculation, the closest and correct option is D) 132.

If a Child's IQ Score Falls Exactly Two Deviations Above