Bad sampling. not randomly selected. what's the

回答: chinese love to use single incident to cover allsickofit2006-03-17 07:08:44

standard deviation ? :-)

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I knew this would be your response. You fell into -pieq314- 给 pieq314 发送悄悄话 (250 bytes) () 03/17/2006 postreply 08:18:59

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