已知一组数据:3,3,4,7,8,则它的方差为_________ .
更新时间:2016-12-06 05:17:40
|
相似题推荐
填空题
|
较易
(0.85)
名校
【推荐1】若一组数据
,
,
,
,
的众数是
,则这组数据的方差 为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b74eb8a7738402df52d4a97262b85ca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b74eb8a7738402df52d4a97262b85ca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
您最近一年使用:0次
填空题
|
较易
(0.85)
【推荐2】若一组数据的方差为
,则这组数据的众数为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64dc724f38613f9f5ac900f57b7aacc3.png)
您最近一年使用:0次