Probability BOB

Probability was such a short unit. When we started to talk about mutually exclusive things, I was kinda lost at first, but after a while I got it and it was all good. =) When we got into the choose formulas, that was when I started to get confused. I sometimes don't know what numbers to use. I had a lot of trouble in finding what the denominator should be. Some parts of the numerator I was able to figure out. Sometimes I wouldn't know whether to add or subtract the probabilities when it didn't have an 'and' or an 'or'. Over all, I don't think this unit was too bad. It was... so, so. Anywho... happy studying! =D