I've resorted to my old college habit of studying very little per night (anywhere from 10 to 30 min) for several nights in a row before the exam (anywhere from 3 to 6 nights). It worked wonders for me in undergrad, we'll see how it work here in Graduateville.
Am I nervous? Worried? I don't believe so. I know that when the quiz is passed out, I'll read it and either understand it or not. Probability is one of those tricky subjects for me and hopefully the probability of me doing well is quite high, although I probability won't know till I get the grade. Terrible joke... trust me, I know... but it's after midnight and those things happen.