The average IQ is 100. An intelligence quotient, or IQ, of a person is determined through a standardized test designed to test the person's overall intellectual abilities.
An IQ score is exhibited on a bell curve with 100 being directly in the middle of the curve. The bell curve has a standard deviation of approximately 15, as of 2014. Statistically, 95 percent of people should fall into two standard deviations away from the average IQ score. This means that 95 percent of people in the world have an IQ between 70 and 130. People with scores greatly above or below this range are considered to be outliers.