SOLUTION: a box contains 3 red, 3 white, and 3 green balls. Two balls are drawn out of the box in succession withour replacement. What is the probability that the two balls are the same colo
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-> SOLUTION: a box contains 3 red, 3 white, and 3 green balls. Two balls are drawn out of the box in succession withour replacement. What is the probability that the two balls are the same colo
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Question 656576: a box contains 3 red, 3 white, and 3 green balls. Two balls are drawn out of the box in succession withour replacement. What is the probability that the two balls are the same color? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! a box contains 3 red, 3 white, and 3 green balls. Two balls are drawn out of the box in succession withour replacement. What is the probability that the two balls are the same color?
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# of ways to succeed: 3C2 + 3C2 + 3C2 = 3 + 3 + 3 = 9
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# of random results: 9C2 = (9*8)/(1*2) = 36
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P(2 the same color) = 9/36 = 1/4
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Cheers,
Stan H.
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