Re:Google commits $1B in grants to train U.S. workers for hi...
by nerpderp83 on Thursday October 12, 2017 @05:42PM
(#15461549)
15% of the population doesn't apply to join the Army. And those that do self select. Using the Army rejection rates for determining the IQ level of the population isn't a good method.
Re:Google commits $1B in grants to train U.S. workers for hi...
by smhost on Thursday October 12, 2017 @06:00PM
(#15461649)
It's the definition of IQ. 15 points is 1 standard deviation, so about 15% of the population has an IQ of 85 or below by definition.
Re:Google commits $1B in grants to train U.S. workers for hi...
by kazinator on Thursday October 12, 2017 @06:07PM
(#15461686)
Just following up to add that these two 15's are unrelated, in case any readers get the wrong idea.
The area under the normal distribution curve from minus infinity to -1 (one standard deviation left of centre) is about 0.1586 or about 15-16%.
The 15 points = 1 stddev property of IQ is arbitrarily established.
Like, being a soldier doesn't require any sort of exceptional intelligence either. It doesn't even require average intelligence. What it requires is an IQ of 85 - below that point, and the US army cannot effectively train you to become a soldier. Despite having every incentive in the world, the US army still rejects about 15% of the population.