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Conditional Probability

24. A bag con...

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24. A bag contains 5 white, 7 red, and 3 black balls. If three balls are drawn one by one without replacement, find the probability that none is red.

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Q. (i) An urn contains 3 white, 4 red and 5 black balls. Two balls are drawn one by one without replacement. What is the probability that at least one ball is black?
(ii) A bag contains 4 white, 7 black and 5 red balls. Three balls are drawn one after the other without replacement. Find the probability that the balls drawn are white, black and red respectively.

Q. A bag contains 4 white, 7 black and 5 red balls. Three balls are drawn one after the other without replacement. Find the probability that the balls drawn are white, black and red respectively.

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