The IQ curve is designed so that 100 is average. So two of your questions can be answered with math:

> average US IQ

100

>human 80th percentile

113

The last one, Ivy League average, can be guessed based on published data. The median SAT score of an Ivy League attendee is 1500. A 1500 on the SAT is roughly an IQ of 130-140.

So in theory, the median Ivy League attendee is at the genius level.

Thanks. My comment was less a question of what the numbers are, but rather provide visual benchmarks on the IQ visualization, since IQ is a metric usually used for humans.