Posted by **Kristin** on Wednesday, February 2, 2011 at 6:01pm.

An urn holds 13 identical balls except that 2 are white, 4 are black, and 7 are red. An experiment consists of selecting two balls in succession without replacement and observing the color of each of the balls.

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**PsyDAG**, Thursday, February 3, 2011 at 10:57am
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