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[–] 4 points 7 months ago (2 children)

I actually went and investigated this at some point out of curiosity and came across a paper showing that intelligence is not a normal distribution but a sum of TWO normal distributions, the second one much smaller than the first and slightly offset (towards the lower values if I remember it correctly).

That being so, for the distribution of intelligence in humans the median is not the same as the mean (which is what's commonly meant by "average") so it's slightly incorrect to say that half of people are below average intelligence.

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