WEEEEEEELLLLLLLLLLLLL, This sort of hard to explain on my part. In probability it's easy to understand after the teacher explains it to you. But when you apply it, It's all a puzzle, and i hate puzzles! I know how to do probability questions that involve the word "given that", but I'm just a little confused with the independent and dependent and mutually exclusive and not mutually exclusive. I mean what do you do after you find that out? what sort of math is involved if these events are mutually exclusive. I have the hardest time understanding it. They rest of probability is A-OK for me! the tree diagram always helps and it gives you more than you're looking for if you know what I mean.