SOLUTION: A bag contains 30 marbles with 18 blues ones and 12 green ones. If you reach into the bag and draw out marbles one at a time until you have three in your hand, what is the probabi

Algebra ->  Probability-and-statistics -> SOLUTION: A bag contains 30 marbles with 18 blues ones and 12 green ones. If you reach into the bag and draw out marbles one at a time until you have three in your hand, what is the probabi      Log On


   



Question 599031: A bag contains 30 marbles with 18 blues ones and 12 green ones. If you reach into the bag and draw out marbles one at a time until you have three in your hand, what is the probability that they are all green?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
A bag contains 30 marbles with 18 blues ones and 12 green ones. If you reach into the bag and draw out marbles one at a time until you have three in your hand, what is the probability that they are all green?
# of ways to succeed: 12C3
# of random results: 30C3
----
P(3 green) = 12C3/30C3 = 0.0542
================
Cheers,
Stan H.