Check. out. those Ed. D. numbers.... whoahhhhh-- is it just me, or is it more than a little bit appalling just how
far into the third quadrant those people were, here??
I was quite amused by business majors as well (figure 2).
It's not surprising when the standardized test for admission is elementary level for math! I once got into a debate with a prof who argued that our whole class was 120+. Business degrees are the biggest money grab since law school.
But, in all seriousness, there's a lot of heterogeneity of talent in the market across schools. The top schools have a quite deep talent pool. My class was mostly engineers, entrepreneurs, economists, mathematicians, bankers, and scientists with graduate degrees. Some of the smartest people I've met have MBAs. But, I'm biased.