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我们知道,用线性回归模型可以近似地刻画两个变量之间的线性相关关系,只要利用最小二乘法求出线性回归方程,即可得到相应的线性回归模型.但如何判
We know that the linear regression model can be used to approximate the linear relationship between two variables, as long as the use of least squares method to find the linear regression equation, you can get the corresponding linear regression model. But how to sentence