About what percent of the U. S. population would have IQ scores that would fall between 85 and 115?
A) 55%
B) 75%
C) 68%
D) 96%

Question

Quizplus · Accepted Answer

Assuming a normal distribution, approximately 68% of the population falls within one standard deviation of the mean. Therefore, IQ scores falling between 85 and 115 (which is a range of 30 points) would represent approximately 68% of the population.

About What Percent of the U