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

probability  kim, Saturday, August 29, 2015 at 5:46pm
probability of choosing a red marble is 1/5 also white marble is 3/10 what is the blue marble probability?
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