![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f5920cb94095627ecf2ef66046cced2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7e83540e13fd1e9e254665e9871a3.png)
更新时间:2021-09-08 22:45:52
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【推荐1】函数
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be68c833c1ee0c400f1a97acad288a6f.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8d8a80c12c9b41e242c85cf36502d10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be68c833c1ee0c400f1a97acad288a6f.png)
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【推荐2】设
,
,
,则
,
,
从小到大排序是______ .(用“
”连接)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cfb81c38b72243f14c9d510f5414a16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbed9bbf7980654ff869e6948b214f8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e257f3dbe845ebc18fb48de01344b244.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7942da6c3fc4005256fb1458557c0.png)
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【推荐2】已知具有相关关系的两个随机变量的一组数据的散点图如图所示,可以用
来拟合,设
,将其变换后得到线性回归方程
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dd9b6c00152adf12cf202da0b88a258.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cb42bd404d22c9da9dcc262d1e31c15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54d28162b2a8309f0f7f193e733be414.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d70cf971858e6af0c18430ab0258e72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6847e0a24198be5cb3562f31adc3e76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dd9b6c00152adf12cf202da0b88a258.png)
![](https://img.xkw.com/dksih/QBM/2021/5/27/2730296489140224/2730555157954560/STEM/5f9c67f261344f8babf03089194e9d66.png?resizew=159)
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