Class not full, but can't sign up for it?

<p>So basically I want to take a psych class, and the max number of students for that class is around 330. However it says that there are only 170/330 enrolled into the class. And theres around 10 people waitlisted. I don't understand..
Does this mean people on the wait list automatically get in later?
Should i get on the waitlist? Im trying to drop one class and add this psych class. Is it a big risk to drop my class and get on the list?
Thanks in advance!</p>

<p>This happened to me once and I didn’t quite understand it. The class acted like it wasn’t full, but it had like 20 people on the waitlist. The weird thing was that when I added the class on my waitlist, I jumped from position to 29 to position 3 in a few minutes and then a few minutes later I was in the class. Since I am a psych major, I think that every time a person dropped the class, I was moved forward on the waitlist faster than the non-majors. The class had a long waitlist throughout the beginning of the quarter. I feel like those extra spots in the class are reserved for psych majors, but I don’t know. So…if you are a psych or psych and social behavior major and are going to be needing that class, then I would say you can take the risk, but if not, well…it might be kind of risky.</p>

<p>Whenever you see a class enrollment form that says xx/xxx, such as 230/300, it means in that class there are 230 enrolled, and 300 maximum. The reason why you can enroll is because the class is full. Many times, classes are offered with different names for different majors, but it’s the same class. For example, a german film class would be like that. 230 students are enrolled for the class as a film one, while the other 70 students are enrolled for the class as a german one–it’s the same class, it’s just that the credit counts towards different majors. You’ll also find this in math classes–a statisics course would be like this to account for both math majors and statistic majors. Same course, just the credit counts for different degrees. In your course, both majors have already filled up the course.</p>