返回列表 发帖

求教一道标准方差???

The standard deviation of a certain set of data is 4. If 12 is 1.5 standard deviations away from the mean, which of the following values could be the mean of the set of data?

A 6
B 16
C 8
D 14
E 10
收藏 分享

同意A

TOP

right, there could be two answer , one is 6 , the other one is 18

TOP

right, the answer is A

TOP

agree

TOP

ME 认为

就是 12-1.5*4=6
或者是 12+1。5*4=18

您觉得呢?

TOP

返回列表

站长推荐 关闭


美国top10 MBA VIP申请服务

自2003年开始提供 MBA 申请服务以来,保持着90% 以上的成功率,其中Top10 MBA服务成功率更是高达95%


查看