SOLUTION: A box contains 4 red, 2 white and 3 green balls. Two balls are drawn out of the box in succession without replacement. What is the probability that both balls are the same co
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Question 1150267: A box contains 4 red, 2 white and 3 green balls. Two balls are drawn out of the box in succession without replacement. What is the probability that both balls are the same color? Found 2 solutions by Alan3354, ikleyn:Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! What is the probability that both balls are the same color?
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Both the same color?
As opposed to only one of them being the same color?
There are 4 + 2 + 3 = 9 balls, in all.
The number of all pairs of balls is = 9*4 = 36. (The order of balls in pairs does not matter).
The number of all pairs consisting of red balls is = 6.
The number of all pairs consisting of white balls is 1.
The number of all pairs consisting of green balls is = 3.
Thus the desired probability is P = = = . ANSWER
