A bag contains 9 Marbles: 4 are green, 2 are red, and 3 are blue. Ann chooses a marble at random, and without putting it back, chooses another one at random. What is the probability that the first marble is blue and the second is green?

Question

Mathematics

Damian Johns

18 September, 08:32

A bag contains 9 Marbles: 4 are green, 2 are red, and 3 are blue. Ann chooses a marble at random, and without putting it back, chooses another one at random. What is the probability that the first marble is blue and the second is green?

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Answers (1)

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Julianna Soto · Answer 1

6/72

Step-by-step explanation:

In the first instance, the probability that it is blue would be 3/9 since there are 3 blue marbles and 9 total marbles. In the second draw, since there is one less marble, the probability will be out of 8. Since there are 2 green marbles in the second draw, the probability will be 2/8. Since we are calculating the probability of both of them together, then answer will be 2/8 * 3/9 = 6/72