From 3a15e35ffae13db7d68eac4d99cdf67eb60f6368 Mon Sep 17 00:00:00 2001 From: ThomasCai <295727207@qq.com> Date: Fri, 25 Jan 2019 16:54:51 +0800 Subject: [PATCH] Update 24.md --- docs/24.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/docs/24.md b/docs/24.md index e4c4536..e4a1495 100644 --- a/docs/24.md +++ b/docs/24.md @@ -337,9 +337,9 @@ from scipy import stats 最小二乘直线称为回归线。最小二乘直线称为回归线。现在你可以从数据8中得到它的等式的证明。设![](http://latex.codecogs.com/gif.latex?\tau{_X,_Y})是$X$和$Y$之间的相关性。然后斜率和截距由下式给出: -![](http://latex.codecogs.com/gif.latex?slope_of_regression_line=\frac{Cov(X,Y)}{Var(X)}=\tau{_X,_Y}\frac{\sigma{_Y}}{\sigma{_X}}) +![](http://latex.codecogs.com/gif.latex?SlopeOfRegression_line=\frac{Cov(X,Y)}{Var(X)}=\tau{_X,_Y}\frac{\sigma{_Y}}{\sigma{_X}}) -![](http://latex.codecogs.com/gif.latex?intercept_of_regression_line=E(Y)-slope\cdot{E(X)}) +![](http://latex.codecogs.com/gif.latex?InterceptOfRegression_line=E(Y)-slope\cdot{E(X)}) **标准单位的回归** -- GitLab