名校
1 . 某同学在研究变量
,
之间的相关关系时,得到以下数据:并采用最小二乘法得到了线性回归方程
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d16a862478985191ece5a20bbe552bec.png)
______ 0(填“>”或“<”).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/424be9b87feade4edf5d90f9a54099c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d16a862478985191ece5a20bbe552bec.png)
![]() | 4.8 | 5.8 | 7 | 8.3 | 9.1 |
![]() | 2.8 | 4.1 | 7.2 | 9.1 | 11.8 |
您最近一年使用:0次
![]() | 4.8 | 5.8 | 7 | 8.3 | 9.1 |
![]() | 2.8 | 4.1 | 7.2 | 9.1 | 11.8 |