A bag contains 5 orange, 8 green, and 6 yellow marbles. Fine the probability of picking three 3 yellow marbles if each marble is NOT returned to the bag before the next marble is picked?

The probability of picking a yellow marble the first time is 6/19

Then if you don't replace it, the probability of picking a yellow one again becomes 5/18

Then, to pick one a third time without replacing it becomes 4/17

So, the total probability is

(6/19)(5/18)(4/17) = 120/5814 = 0.021

Secure Information

Content will be erased after question is completed.

Enter the email address associated with your account, and we will email you a link to reset your password.

Forgot your password?

Sign Up