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IAmNeil

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2011-7-2 
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发表于 2011-7-11 15:21 | 显示全部帖子
Hi, guys.

I get this one.

"it is 95% confidence of a one-tailed distribution. Loss is one-sided ( always below mean) . That would be 2-stdev below mean. "

this is the key.

Thanx!

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