Question 322009
There are 9 beads in a bag. 3 beads are red, 3 beads are blue, and 3 beads are black. If two beads are chosen at random, what is the probability that they are both blue?
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# of ways to get 2 blue: 3C2 = 3
# of ways to select 2 marbles randomly: 9C2 = 36
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P(2 blue) = 3/36 = 1/12
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Cheers,
Stan H.
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A. 1/81 B. 1/12 C. 2/9 D. 1/3 E. 1/4