Thanks for guessing, but guess what, you fail. I am a 4th year, and i have attended every single lecture, and optional discussion this semester. I took notes as best i could, but didn't get everything. His slides were also available online.
The point really doesn't focus on my individual score or study habits. The point is that an exam with an average of 45% is a poor reflection on the professor.
no no you fail
but on a serious note, you should probably talk to the prof?