Final Exam Pool Time

My final exam is scheduled for Friday morning. This sucks for a number of reasons, most especially because I have to have grades in by noon on Monday. With that aside, the other fundamental problem is that the annual Gator Stompin takes place Thursday night. Gator Stompin is a pub crawl. It is designed for seniors, but open to all students with fake IDs. Its name is Latin for "Give us a lot of money and we will give you a T-shirt, a slice of cold pizza, and a bunch of watered down drinks."

Based on the above information, the questions I pose to you are as follows:
1) How many students will miss my final exam?
2) How many students will admit that they got too drunk the night before to get up and come to class?
3) How many students will have legit excuses?

The class has 30-35 students in it and all are expected to attend the final. Answer in the comments section below.