A bag contains 5 red marbles, 7 blue marbles and 8 green marbles. If three marbles are drawn out of the bag, what is the probabi
lity, to the nearest 10th of a percent, that all three marbles drawn will be green?
2 answers:
Answer:
8/20 or 4 percent
Step-by-step explanation:
Answer:
4.9%
Step-by-step explanation:
There are a total of 20 marbles.
The probability that the first marble is green is 8/20.
The probability that the second marble is green is 7/19.
The probability that the third marble is green is 6/18.
The total probability is:
P = (8/20) (7/19) (6/18)
P ≈ 0.049
The probability is 4.9%.
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