I hate probability to the core.... stupid question... can anyone help mi??? here's the questions...
The independent probabilities that three components of a TV set will need replacing within a year are 1/10, 1/12, 1/15. Calculate the probability that one and only one component will need replacing...
Next, an urn contains 5 red and 4 white cubes. If 3 marbles are drawn in sucession without replacement, find the probability that the third one is white knowing that the first 2 cubes are red... These 2 questions is driving me crazy...
Next sun is CHINESE NEW YEAR!!! i going back to holiday mood again... =X Day passes by very quickly... new year just passed not long ago as though it just happened yesterday and now chinese new year is coming next week... right after next week, it's all the tests coming and vacation plus the release of O's for all O level candidates...
Time passes by very quickly.... CHERISH THE MOMENT YOU HAVE NOW...