10 items | 2 visits
something that I found but have no time to read.most of them are fairly long articles,for example some science fictions,that I would rather read on my cellphone.
Updated on May 27, 09
Created on May 27, 09
Category: Others
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mao jiaxin's List: temp or unread
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P(B|A) = P(A|B) * P(B) / [P(A|B) * P(B) + P(A|B) * P(~B) ]
收缩起来就是：
P(B|A) = P(AB) / P(A)
其实这个就等于：
P(B|A) * P(A) = P(AB)
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概率论只是把常识用数学公式表达了出来。
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