Reply #6: No, you're describing a MEAN not an average.

[Tyler Durden]

There are many, many people under 100 IQ.

Let's say you want to obtain the number of Americans who would balance out one Einstein @ IQ of 150. It looks like this:

100=(150+(x*IQ))/(x+1)

If you want the number of say, IQ 90 persons you'd need to balance out Albert, you sub in 90 for IQ and solve for x.
If you want the IQ you'd need to balance him out given a number of persons, sub in that for x and solve for IQ.

Then it gets REALLY SCARY.

If you want to know what MY IQ is, it would take almost 7 people (6.7) with a 90 IQ to balance me out to 100. Do the math.