Posted by **chocolateman** on Thursday, November 15, 2012 at 10:29am.

A bowl contains only red marbles, blue marbles and green marbles. The probability of selecting a red marble from the bowl is 3/13. The probability of selecting a blue marble from the bowl is 2/5. There are fewer than 100 marbles in the bowl. What is the probability of selecting, at random and without replacement, a green marble and then a red marble from the bowl on the first two selections?

Express your answer as a common fraction.

- probability (incomplete) -
**PsyDAG**, Thursday, November 15, 2012 at 11:35am
3/13 = .23 for red marble

2/5 = .40 for blue marble

?? for green marble.

How many fewer than 100?

Probability of both/all events occurring is found by multiplying the probabilities of the individual events.

- probability -
**chocolateman**, Friday, November 16, 2012 at 11:28am
thanks!

- probability -
**unknown**, Monday, February 3, 2014 at 8:17pm
Say there are 65 marbles in the bag. Then there will be 15 red marbles, 26 blue marbles, and 24 green marbles. so without replacement the probability of receiving a green marble and then a red marble would be (24/65)(15/64) which is 9/104

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