对应视频教程:ISLP【EP013】
Residual Sum of Squares, RSS 残差平方和
可以理解为实际结果和拟合结果之间的总平方差异。The total square discrepancy between the actual outcome and the fit.
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Residual 残差:the discrepancy between the actual outcome and the fit(the predicted outcome)
the Least Square Approach 最小二乘法
the least square line即为令最小的一条线
slope 斜率; intercept 截距
Accessing the Accuracy of the coefficient Estimates (Confidence Intervals)
Standard Error of the slope and intercept