1 . 从某高中随机选取5名高三男生,其身高和体重的数据如下表所示:
![](https://img.xkw.com/dksih/QBM/2019/7/15/2247282182897664/2247401354518528/STEM/32aaa16bcdf64a39b4026dce9d630990.png?resizew=411)
根据上表可得回归直线方程
,据此模型预报身高为
的高三男生体重为
![](https://img.xkw.com/dksih/QBM/2019/7/15/2247282182897664/2247401354518528/STEM/32aaa16bcdf64a39b4026dce9d630990.png?resizew=411)
根据上表可得回归直线方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7324c94a84afe3ada10011d2ec05695d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5c834395095d00ed3297f5e7e03156.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2016-12-04更新
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2卷引用:2016届贵州市兴义市八中高三第七次月考文科数学试卷