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A bag contains 7 red marbles, 8 blue marbles and 5 green marbles. If two marbles are drawn out of the bag, what is the probability, to the nearest 10th of a percent, that both marbles drawn will be green?

 Jan 21, 2020
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The probability that the first marble is green:  5/20

The probability that after drawing the first green marble, the second marble will also be green:  4/19

 

The total probability:  5/20 x 4/19  =  20/380  =  0.0526      (you can round this answer)

 Jan 21, 2020

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