[weboob] 如何进行进行统计学上有效的抽样调查邬鸣思 wh3q

邬鸣思 mts at gessyen.org
Wed Jun 5 22:58:35 CEST 2013


weboob您好!!
如何进行进行统计学上有效的抽样调查
详.细.内.容.请.查.看.附.件
 2013-6-64:58:39phdld7
岁岁平安

不害怕痛苦的人是坚强的,不害怕死亡的人更坚强。——迪亚娜夫人
人生并不都象蜜那样甜,就跟大地并不只生长甘蔗一样。 
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