SOLUTION: A bag contains 20 blue and 15 green marbles. Two marbles, without replacement, are drawn at random.
What is the probability that both are blue?
What is the probability that at
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What is the probability that both are blue?
What is the probability that at
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Question 689183: A bag contains 20 blue and 15 green marbles. Two marbles, without replacement, are drawn at random.
What is the probability that both are blue?
What is the probability that at least one of them is blue?
What is the probability that at least one of them is green? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A bag contains 20 blue and 15 green marbles. Two marbles, without replacement, are drawn at random.
What is the probability that both are blue?
Ans: 20C2/35C2 = 0.3193
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What is the probability that at least one of them is blue?
Ans: 1 - 15C2/35C2 = 1 - 0.1765 = 0.8235
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What is the probability that at least one of them is green?
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Ans: 1 - 0.3193 = 0.6807
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Cheers,
Stan H.
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