SOLUTION: A bag contains 6 red marbles and 4 green marbles. I reach in the bag and draw out two marbles at the same time. What is the probability that they are both red?

Question 236798: A bag contains 6 red marbles and 4 green marbles. I reach in the bag and draw out two marbles at the same time. What is the probability that they are both red?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A bag contains 6 red marbles and 4 green marbles. I reach in the bag and draw out two marbles at the same time. What is the probability that they are both red?
-----
# of ways to pick 2 red: 6C2 = 15
# of ways to pick 2 from 10: 10C2 = 45
---
P(pick 2 red) = 15/45 = 1/3
==================================
Cheers,
Stan H.
RELATED QUESTIONS
A bag contains 5 blue marbles, 6 red marbles, and 9 green marbles. Two marbles are drawn... (answered by stanbon)

A bag contains 6 red marbles, 4 blue marbles, and 3 green marbles. If you draw two... (answered by Fombitz)

A bag contains 4 blue marbles, 6 green marbles, and 2 red marbles. You select one ball at (answered by rfer)

A bag contains 5 black marbles, 4 red marbles, 6 green marbles, and 5 blue marbles. What... (answered by stanbon)

A bag contains 6 red marbles, 4 blue marbles, 7 white marbles and 9 yellow marbles. You... (answered by edjones)

A bag contains 10 red marbles, 6 white marbles, and 9 blue marbles. You draw 4 marbles... (answered by ikleyn)

A bag contains 6 red marbles, 7 white marbles, and 7 blue marbles. You draw 4 marbles out (answered by stanbon)

) Bag 1 contains 12 green marbles, 5 blue marbles, and 3 yellow marbles. Bag 2 contains 8 (answered by checkley71)

A bag contains 5 red marbles, 10 white marbles, and 6 blue marbles. You draw 5 marbles... (answered by scott8148)