男女比例2:7,說明什麽?
所有跟帖:
• 名人堆裏說明不了什麽,這是一組特殊群體,如果想說明什麽要隨機抽樣~ -^3.1415926^- ♀ (0 bytes) () 07/19/2011 postreply 12:25:24
• 萬惡的婚姻製度造成的 :) -433832795028- ♂ (0 bytes) () 07/19/2011 postreply 13:25:40
• 名人堆裏說明不了什麽,這是一組特殊群體,如果想說明什麽要隨機抽樣~ -^3.1415926^- ♀ (0 bytes) () 07/19/2011 postreply 12:25:24
• 萬惡的婚姻製度造成的 :) -433832795028- ♂ (0 bytes) () 07/19/2011 postreply 13:25:40
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