[ExI] didn't know he was at the party... was: RE: Wrath of the Old Ones
rafal.smigrodzki at gmail.com
Sun May 3 05:37:51 UTC 2015
On Sat, May 2, 2015 at 12:00 PM, William Flynn Wallace <foozler83 at gmail.com>
> While discussing IQ with my undergrads I pointed out that IQ geniuses are
> in every population. Does that mean that somewhere in deepest Africa is a
> pygmy with a bone through his nose who has an IQ of 190 and is potentially
> the greatest mathematician since Fermat? Yes it does. Maybe there isn't,
> but there could be.
### Highly unlikely. The IQ of pygmies is estimated at 53. I don't know the
standard deviation of IQ among pygmies but if it was the same as among
normal populations, an IQ of 190 would be more than 9 sigma above their
average. I tried to use a couple of online normal distribution calculators
but none were designed to go so far off the mean and all of them gave 0 as
answer. As an example, an 8 sigma outlier is found with a probability of
Considering that the number of pygmies is less than a million, we can be
expect with a likelihood of > 1-((4x10e-13)/1000000)= 0.9999996 that there
are no pygmies with an IQ of 190 or higher.
Of course, this is a silly calculation - IQ tests are not properly normed
for outlier populations, both far below and far above the average, so the
true likelihood of extreme genius among pygmies is unknown but certainly
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