What I read in-between the lines of your post is that you are interested in knowing the profiles of typical minorities (however you define that). In general, I'd say there really is no typical profile - people of all walks of life and from just about anywhere on the planet will show up. I know a girl who was a pastry chef before school, I know another guy who was in a PE shop in Africa, another fellow who lived in Kazakhstan for six years - etc. They all did different things and have very wide backgrounds. Suffice it to say, at just about any school you will find a broad cross section of people, beliefs, backgrounds and upbringings. If your question was geared towards "sizing" up your own profile against these other "minority profiles", I don't think you can find that much help - there is no common profile. If it was more about a concern as to whether you can find diversity in b-school, rest assured, you will.
I'm going to lock the thread because I think its a bit of a touchy subject and a slippery path, but if people feel strongly it should stay open, feel free to PM me about it.