送交者: 短江学者 于 2008-10-03, 22:38:12:

回答: What about this ? 由 HunHunSheng 于 2008-10-03, 22:16:17:

• What about X(n)服从正态分布N(1/n,sigma/sqrt(n))? - HunHunSheng (4 bytes) 2008-10-03, 22:46:36 (264351)

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