题目内容
两个相关变量满足如下关系:
则两变量的回归方程为( )
A.
B.![](http://thumb.zyjl.cn/pic2/upload/papers/20140823/20140823193023905798.png)
C.
D.![](http://thumb.zyjl.cn/pic2/upload/papers/20140823/20140823193023999773.png)
x | 10 | 15 | 20 | 25 | 30 |
y | 1003 | 1005 | 1010 | 1011 | 1014 |
则两变量的回归方程为( )
A.
![](http://thumb.zyjl.cn/pic2/upload/papers/20140823/20140823193023577832.png)
![](http://thumb.zyjl.cn/pic2/upload/papers/20140823/20140823193023905798.png)
C.
![](http://thumb.zyjl.cn/pic2/upload/papers/20140823/20140823193023967774.png)
![](http://thumb.zyjl.cn/pic2/upload/papers/20140823/20140823193023999773.png)
A
![](http://thumb.zyjl.cn/pic2/upload/papers/20140823/201408231930241701007.png)
![](http://thumb.zyjl.cn/pic2/upload/papers/20140823/201408231930241861293.png)
![](http://thumb.zyjl.cn/pic2/upload/papers/20140823/201408231930242012223.png)
![](http://thumb.zyjl.cn/images/loading.gif)
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题目内容
x | 10 | 15 | 20 | 25 | 30 |
y | 1003 | 1005 | 1010 | 1011 | 1014 |