Question 844251: A bag contains four red, three green, and five yellow marbles. three marbles are drawn, one at time, without replacement. Determine the probability that the probability that the order in which they are selected is:
a) yellow, red, green
b) yellow, yellow, red
c) yellow, green, green
how to draw a tree diagram for this question?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A bag contains four red, three green, and five yellow marbles. three marbles are drawn, one at time, without replacement. Determine the probability that the probability that the order in which they are selected is:
a) P(yellow, red, green) = 5/12 * 4/11 * 3/10 = 60/(12*11*10) = 1/22
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b) P(yellow, yellow, red) = (5/12)(4/11)(4/10) = 80/(12*11*10) = 1/66
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I'll leave this to you:::
c) yellow, green, green
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how to draw a tree diagram for this question?
1st column has 4+3+5 = 12 entries
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2nd column has 12*11 = 132 entries
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3rd column has 12*11*10 = 1320 entries
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Cheers,
Stan H.
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