样本率的标准误s[img=~/QImg/2013-10-14-10-49-09/image009.jpg]的特点

A、n越大,则s[img=~/QImg/2013-10-14-10-49-09/image009.jpg]越大
B、p越大,则s[img=~/QImg/2013-10-14-10-49-09/image009.jpg]越大
C、l-p越大,则s[img=~/QImg/2013-10-14-10-49-09/image009.jpg]越大
D、np越大,则s[img=~/QImg/2013-10-14-10-49-09/image009.jpg]越大
E、n越大,则s[img=~/QImg/2013-10-14-10-49-09/image009.jpg]越小