Question 1117838
A bag contains 3 green balls,6 black balls and one white ball.if two balls are drawn at random without replacement,what is the probability of drawing a green and then a black ball?
# of green/black pairs:: 3*6 = 18
# of random pairs:: 10C2 = 5*9 = 45
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P(green/black pair) = 18/45 = 2/5
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Cheers,
Stan H.
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