题目内容
三个样本率比较，X2>X20.01（2）可以认为
2021-10-13
A.各总体率不等或不全相等
B.各总体率均不相等
C.各样本率均不相等
D.各样本率不等或不全相等
E.各总体率相等
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='25581' and id < 2153312 and id<>'2153312' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25581' and id > 2153312 and id<>'2153312' order by id asc limit 5