SOLUTION: A bag contains 4 blue marbles, 3 red marbles, 2 green marbles and 1 white marble. You reach in and randomly pick one marble, set it aside, and then randomly pick a second marble.

Question 350121: A bag contains 4 blue marbles, 3 red marbles, 2 green marbles and 1 white marble. You reach in and randomly pick one marble, set it aside, and then randomly pick a second marble. What is the probability of picking a red marble and then a green marble?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A bag contains 4 blue marbles, 3 red marbles, 2 green marbles and 1 white marble. You reach in and randomly pick one marble, set it aside, and then randomly pick a second marble. What is the probability of picking a red marble and then a green marble?
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P(red) = 3/10
P(green | red) = 2/9
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P(red and green) = (3/10)(2/9) = (1/5)(1/3) = 1/15
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Cheers,
Stan H.
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