SOLUTION: A box contains 9 green marbles, 9 blue marbles, and 5 red marbles. Three marbles are selected at random from the box, one at a time, without replacement. Find the probability

Algebra ->  Probability-and-statistics -> SOLUTION: A box contains 9 green marbles, 9 blue marbles, and 5 red marbles. Three marbles are selected at random from the box, one at a time, without replacement. Find the probability      Log On


   

Question 1153536: A box contains 9 green marbles, 9 blue marbles, and 5 red marbles.
Three marbles are selected at random from the box, one at a time, without replacement.
Find the probability that the three marbles selected are all different colors.
Answer by VFBundy(438) About Me  (Show Source):
You can put this solution on YOUR website!
%289C1+%2A+9C1+%2A+5C1%29%2F%2823C3%29 = = %289+%2A+9+%2A+5%29%2F1771 = 405%2F1771 = 0.2287