If a person has an IQ of 130, approximately what percentage of people have higher IQs? Assume M = 100 and SD = 16.
A)1%
B)3%
C)6%
D)9%

Question

Quizplus · Accepted Answer

An IQ of 130 is 2 standard deviations above the mean (since the mean is 100 and the standard deviation is 16). In a normal distribution, about 2.5% of people score more than 2 standard deviations above the mean. However, since the question asks for the approximate percentage, the closest option given is 3%.

If a Person Has an IQ of 130, Approximately What