From 06e137479f5d1b1751351071794296f0cdadad1d Mon Sep 17 00:00:00 2001
From: Hui Lan <lanhui@zjnu.edu.cn>
Date: Thu, 11 Apr 2019 09:30:10 +0800
Subject: =?UTF-8?q?=E5=8F=82=E6=95=B0=E4=BC=B0=E8=AE=A1=E4=B9=9F=E6=98=AF?=
 =?UTF-8?q?=E9=9A=8F=E6=9C=BA=E5=8F=98=E9=87=8F?=
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---
 ai-slides.tex | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'ai-slides.tex')

diff --git a/ai-slides.tex b/ai-slides.tex
index cc38c42..32c53c3 100644
--- a/ai-slides.tex
+++ b/ai-slides.tex
@@ -543,7 +543,8 @@ Least squares line. $\hat{Y}=\hat{\beta}_0 + \hat{\beta}_1 X$.
   \includegraphics[width=0.99\textwidth]{ISLR_Fig3_3.png}
 \end{center}
 
-参数估计的标准错误(standard error)，$\mathrm{SE}(\hat{\beta})$。
+参数估计也是随机变量，在不同的训练集上有不同的参数估计。参数估计的标准
+错误(standard error) $\mathrm{SE}(\hat{\beta})$。
 
 \begin{center}
   \includegraphics[width=0.99\textwidth]{ISLR_Eq3_8.png}
-- 
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