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- UID
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- 主题
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- 2011-7-11
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- 2013-8-20
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| I got this one wrong for a different reason. I included beta because of it’s use in weighted average alpha, etc., but I read it as non-specific variance, and we use non-specific standard deviation. Thinking too much I guess. |
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发表于 2013-4-14 00:03
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