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Quandaries & Queries
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 Topic: chances
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 Amy is playing a game 2007-08-25 From vanessa:problem statement: amy is playing a game. in order to win this game, she has to draw a red-coloured card from a given box. advise her on her chances of winning.Answered by Penny Nom. Combining probabilities 2007-08-20 From Arul:Xavier, Yvonne, and Zelda each try independently to solve a problem. If their individual probabilities for success are 1/4, 1/2 , and 5/8 , respectively, what is the probability that Xavier and Yvonne, but not Zelda, will solve the problem ?Answered by Stephen La Rocque. Probability tree 2007-05-19 From Patrick:My question involves a video game called Guild Wars. In the game you can have modifications(mods) on items. One such mod is that you have a 20% chance to halve the casting time of a spell. You can have 2 of these mods available to you. Now, it is to my understaning that combined, you would have a 32% chance to halve the casting time and a 4% chance to quarter the casting time. Is this correct?Answered by Stephen La Rocque. Probability 2007-05-07 From Danielle:A box contains 3 defective lights and 5 non-defective lights. The lights are tested one at a time without replacement. What is the probability that the 3 defective bulbs will be found in the first 3 tests? is it 1/56 by chance?Answered by Stephen La Rocque. How to find the odds for a lottery jackpot 2006-04-12 From Harvey:Is it best to use factorials to calculate the odds of winning a lottery, such as the MegaMillions that is popular in the US, or is there a better way?Answered by Stephen La Rocque.

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