15% of people suffer from low IQ = the amount of people which are below 1 standard deviation of the average? Sounds a bit tautological since that would happen with any normally distributed trait.
Replying to @DiegoBeghin @sonyaellenmann
all children in Lake Wobegon whose IQs were 100 or lower were ruthlessly culled
9:38 AM - 26 Aug 2018
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