It is a university student database, and the major variables in it are "history", "history and math", etc. Then it requires you to identify the values with "and" in the middle, and then split them into major and second major. I don't know this function, so I did it manually. There are about 20 different combinations of and, and I solved them all with if then do. I wanted to cry when I was writing it. . . . 1. The major with the most freq . 2. The second major with the most freq 3. It seems to be a freq, but with where