g*******g 发帖数: 45 | 1 I found this problem in a text book. It keeps confusing me.. | i***r 发帖数: 6012 | 2 aha! This is a easy one that I can answer:
What the 2/3 is the expected value of the balls if the value of back is 1 and
value of white is 0. Expected value is NOT a probability as the problem
suggests, so the ensuing analysis from that oint on is incorrect.
cannot
balls,
three, |
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