So, ARE boys better than girls at math?

Sometimes, I really don't have to write a thing!

The answer: that's not the question you should be asking.

Rather, you should be asking how the skill level of boys and girls varies by person. If there is a difference in variance, then it means one group will be producing more geniuses (and idiots) than the other. Since certain jobs require a LOT of intelligence, it means that one gender will be over-represented in that field.