SOLUTION: A bag contains 10 red, 3 white and 6 blue marbles. Two are selected at random without replacement. What is the probability that both are blue?

Question 950150: A bag contains 10 red, 3 white and 6 blue marbles. Two are selected at random without replacement. What is the probability that both are blue?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A bag contains 10 red, 3 white and 6 blue marbles. Two are selected at random without replacement. What is the probability that both are blue?
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# of blue pairs:: 6C2 = 15
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# of random pairs:: 19C2 = 19(9) = 171
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P(blue pair) = 15/171
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Cheers,
Stan H.
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