By now, many people shopping for college have gotten the message that not everyone pays the list price. But what percentage do get some kind of discount, how much is it and what sorts of students get one?One way to answer these questions — and many more about the overall undergraduate experience — is by reading the so-called Common Data Set. The C.D.S. is a collection of information about admissions, demographics, financial aid, academics and campus life. Schools assemble it each year and send it along to U.S. News & World Report, Peterson’s and other entities that sort or rank colleges and universities.Most institutions post their C.D.S. somewhere on their websites. But at least a dozen did not at the start of this week. Over the last five days, I reached out to ask …
