This is qualitatively a good point, but quantitatively you should be careful. There are only ~7 people in the world who are 6 sigmas above the mean (using a normal distribution).
Knock one or two points off each interval, and the point stands. But in any case the IQ distribution is likely slightly thick-tailed; it’s only Gaussian out to say 140 or so.
This is qualitatively a good point, but quantitatively you should be careful. There are only ~7 people in the world who are 6 sigmas above the mean (using a normal distribution).
Knock one or two points off each interval, and the point stands. But in any case the IQ distribution is likely slightly thick-tailed; it’s only Gaussian out to say 140 or so.