Lake Wobegon
Jul 16, 2012
If all the children are of the same ability, then they are all (weakly) above average.
Suppose that all the children are of ability 2 except Bob, who is only of ability 1. Then all the children except Bob are strictly above average.
Have you ever heard humorous observation that 90% of drivers think that they are better than average? The statement is potentially true, if there are a few really horrible drivers.