Well, I don't think it really reflects what most people do on campus...but its not that far off i guess. Auburn has a lot of engineering/math/science, while the fraternities tend to be more in the business/law area. I think for the sororities you'll see a good bit of liberal arts (poli sci, english) and then a lot of pharmacy, apparel design, education and nursing.
I'm curious whether those majors reflect the general student population as well. If a school has 50% of their students working toward a business degree, is that the same for the students in fraternities/sororities? I think at my school, back then, we pretty much reflected the general school population. We had a lot of business and education majors, but that was also the general focus at the school. I was the only Occupational Therapy major, but that program only accepted 50 students a year, so that would be expected. I was the only one in my OT class who was Greek.
Incidentally, my first husband got his degree in Energy Management and his classes were pretty different from what you described. He had electronics, physics and business courses primarily, along with some stuff on rates and codes.
Energy Management as I understand it deals with Oil and Gas......doesn't sound like it with what your husband did. Oh well.
Like many research universities, my alma mater is a university broken down into specific colleges. All of the Panhel chapters seemed to reflect the percentages of students within each college with the exception of the College of Fine Arts. CFA professors (especially from the drama dept) were notoriously anti-Greek.
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....but some are more equal than others.