名校
1 . 有一组样本数据
,
,…,
和一组样本数据
,
,…,
,如果
,
,…,
,其中
为非零常数,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a79b9eaa5e7ab7a1e5c512b571914dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb03254c2ba1940b6865e6c3c4ba4da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383358222e8c9e5968181c830adbb0af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf7017964522d78d7ba6756ef337e0d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
A.两组样本数据的样本平均数相同 | B.两组样本数据的样本方差相同 |
C.两组样本数据的样本中位数相同 | D.两组样本数据的样本极差相同 |
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2021-08-02更新
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716次组卷
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6卷引用:湖北省孝感市普通高中协作体2020-2021学年高一下学期期末数学试题