Question 599031
A bag contains 30 marbles with 18 blues ones and 12 green ones. If you reach into the bag and draw out marbles one at a time until you have three in your hand, what is the probability that they are all green?
# of ways to succeed: 12C3
# of random results: 30C3
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P(3 green) = 12C3/30C3 = 0.0542
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Cheers,
Stan H.