About what percentage of of children score within 15 points above or below the national average, which is 100 points?
A) 95
B) 70
C) 50
D) 33

Question

Quizplus · Accepted Answer

In a standard distribution, about 68% of the population scores within one standard deviation above or below the mean. In many IQ tests, 15 points represent one standard deviation. Therefore, approximately 70% of children score within 15 points above or below the average score of 100.

About What Percentage of Of Children Score Within 15 Points