Assuming the measurement is dead-on accurate, which is open to debate, and that the group is perfectly normed, yes, I suppose just UNDER 50% of those being evaluated will be below the statistical score of 100. I didn’t say “below average.” Although that’s the semi-humorous point I was trying to make: Only in Lake Wobegon are all the children above average! We sometimes forget that an IQ of 100 (whatever that means), or anybody within 10 or so points of that, is a normal, average person. If one ususally associates with people who are above average (like the contributors to the SDMB) then one starts to think more highly of the vast majority of the world than is appropriate.
That is all.
As you were.