Question 653584: A bag contains 7 blue marbles, 8 green marbles, 15 red marbles, and 10 yellow marbles. Find the probability of randomly drawing without replacement, a blue marble and then a red.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A bag contains 7 blue marbles, 8 green marbles, 15 red marbles, and 10 yellow marbles. Find the probability of randomly drawing without replacement, a blue marble and then a red.
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P(blue) = 7/40
P(red|blue) = 15/39
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P(blue then red) = (7/40)(15/39) = 0.0673
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Cheers,
Stan H.
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