In a bell (or normal) curve, the largest percentage of people taking an IQ test will score in the range from __________
A) 0 to 60.
B) 130 to 200.
C) 90 to 110.
D) 70 to 130.

Question

Quizplus · Accepted Answer

In a bell curve, the majority of people will score within one standard deviation of the mean. For IQ tests, the mean is usually set at 100 with a standard deviation of 15. This means that the range from 70 to 130 will encompass approximately 68% of scores, which is the largest percentage.

In a Bell (Or Normal) Curve, the Largest Percentage of People