那也就是说POLL不一定真的代表民意咯
所有跟帖:
• of course, when sample size is big enough. It is statistics. -我是大海- ♀ (0 bytes) () 10/25/2016 postreply 11:24:36
• of course, when sample size is big enough. It is statistics. -我是大海- ♀ (0 bytes) () 10/25/2016 postreply 11:24:36