A bag contains 8 red marbles, 3 blue marbles and 7 green marbles. If three marbles are drawn out of the bag, what is the probability, to the nearest 1000th, that all three marbles drawn will be red?
There are 18 marbles in total. 8 of which are red. You must draw out 3. Therefore, you have a 8/18 probability of getting a red marble. You can just divide that number to obtain 0.444
