2020-03-28
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1353
曲线估算保存的预测值体现了两个相关变量的什么关系?
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体现出两个变量的线性关系,统计上的意义就是通过散点图得到两个变量的关系是线性的还是非线性的,预测值是整合了y与x之间的关系,所以预测值可以看做一个综合值,还要解释他的业务有意义
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