Multiple choice general knowledge

By definition, the average IQ is:

  1. 100

  2. 110

  3. 150

  4. 135
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A Correct answer
Explanation

IQ scores are standardized so that the average (mean) score for a population is always 100, with a standard deviation of typically 15. This is a fundamental property of IQ testing - by definition, 100 represents average intelligence for the reference population. Scores above or below 100 indicate above or below average performance.

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