A bag contains 3 red marbles, 7 blue marbles and 8 green marbles. If three marbles
are drawn out of the bag, what is the exact probability that all three marbles drawn
will be green?
You have 3 red, 7 blue, and 8 green marbles. Add all of them together and you have 18. The probability of you pulling out 3 green marbles is 8 out of 18.
