# probability

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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?

• probability (incomplete) -

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 -

thanks!

• probability -

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 -

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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