SOLUTION: An urn contains 8 balls identical in every respect except color. There are
4 blue balls, 3 red ones and 1 white one. If you draw two balls without replacing the first one, wha
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-> SOLUTION: An urn contains 8 balls identical in every respect except color. There are
4 blue balls, 3 red ones and 1 white one. If you draw two balls without replacing the first one, wha
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Question 575508: An urn contains 8 balls identical in every respect except color. There are
4 blue balls, 3 red ones and 1 white one. If you draw two balls without replacing the first one, what is the probability that the first ball is red and the second is white? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! 4 blue balls, 3 red ones and 1 white one. If you draw two balls without replacing the first one, what is the probability that the first ball is red and the second is white?
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# of ways to draw red and then white: 3*1 = 3
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# of random pairs: 8C2 = 8*7/1*2 = 28
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P(red/white) = 3/28
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Cheers,
Stan h.
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