In reply to: nearly half of Americans are of below average intelligence posted by AIRBORNEIRISH
Exactly half are below median intelligence, not average.
I'll go ahead and give myself the pedant of the day award.
The mean is the mode is the median.
It is normally distributed, and in a population as large as the US, we should expect 1/2 the population above and half below.
It's not like wealth where the average is further to the right than the median due to extreme wealth.
I actually know next to nothing about IQ, so I had no idea.