What percentage of people have an IQ score higher than 115?
A) 68
B) 16
C) 50
D) 32

Name: What percentage of people have an IQ score higher than 115? A) 68 B) 16 C) 50 D) 32
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Question

Quizplus · Accepted Answer

An IQ score of 115 is one standard deviation above the mean (100) in a normally distributed population. Since 68% of people score within one standard deviation of the mean (between 85 and 115), 100% - 68% = 32% score outside this range. Half of that 32% (16%) scores above 115.

What Percentage of People Have an IQ Score Higher Than