SOLUTION: A bag contains 6 red marbles and 4 green marbles. I reach in the bag and draw out two marbles at the same time. What is the probability that they are both red?
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Question 236798: A bag contains 6 red marbles and 4 green marbles. I reach in the bag and draw out two marbles at the same time. What is the probability that they are both red? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A bag contains 6 red marbles and 4 green marbles. I reach in the bag and draw out two marbles at the same time. What is the probability that they are both red?
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# of ways to pick 2 red: 6C2 = 15
# of ways to pick 2 from 10: 10C2 = 45
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P(pick 2 red) = 15/45 = 1/3
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Cheers,
Stan H.
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