Posted by **Vanny** on Sunday, February 20, 2011 at 9:24pm.

If a ball is selected at random from an urn containing six red balls, six white balls, and eight blue balls, what is the probability that it will be a white ball

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**MathMate**, Sunday, February 20, 2011 at 9:31pm
hint:

P(white)

=Number of white balls/total number of balls.

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**Vanny**, Sunday, February 20, 2011 at 9:32pm
i got 0.3

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**Shadow**, Sunday, February 20, 2011 at 9:42pm
I don't think MathMate mean to divide the number.

- I'm guessing he say to add the total amount up, and put it as the denominator while the amount of white ball is the numerator. Then you will have your probability of picking a white ball ( Simplify if needed).

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**Helper**, Sunday, February 20, 2011 at 10:41pm
Vanny, you are correct

6/20 = 0.3

or you can leave as 6/20 = 3/10

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