SOLUTION: Suppose that an urn contains 3 green marbles, 11 black marbles, and 6 yellow marbles. If one marble is selected, determine the probability that it is black. Here is my solution:

Algebra ->  Probability-and-statistics -> SOLUTION: Suppose that an urn contains 3 green marbles, 11 black marbles, and 6 yellow marbles. If one marble is selected, determine the probability that it is black. Here is my solution:      Log On


   



Question 284627: Suppose that an urn contains 3 green marbles, 11 black marbles, and 6 yellow marbles. If one marble is selected, determine the probability that it is black.
Here is my solution:
3 + 11 + 6 = 20
black marbles = 11
answer: 11/20.

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
By George I think you have got it!