Posted by Ali on Tuesday, March 2, 2010 at 5:32pm.
What is the probability of drawing a red checker from a bag of 9 black checkers and 6 red checkers, replacing it, and drawing it again?

math  bobpursley, Tuesday, March 2, 2010 at 5:52pm
Pr=(6/15)(6/15)

math  Michelle, Wednesday, March 10, 2010 at 5:16pm
6/9
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