<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">

\def\CTeXPreproc{Created by ctex v0.2.13, don't edit!}
\documentclass[cjk,t,compress,12pt]{standalone}
%\documentclass{article}
%\usepackage{beamerarticle}
\usepackage{pstricks}
\usepackage{etex}
\usepackage{eso-pic,graphicx}
\usepackage{fancybox}
\usepackage{amsmath,amssymb}
\usepackage{setspace}
\usepackage{xcolor}
\usepackage{CJK}
\usepackage{tikz}
\usepackage{tikz-qtree}
\usepackage{hyperref}

\usetikzlibrary{arrows,decorations.pathreplacing}
\usetikzlibrary{shadows} % LATEX and plain TEX when using Tik Z


\usepgflibrary{arrows} % LATEX and plain TEX and pure pgf
\usetikzlibrary{arrows} % LATEX and plain TEX when using Tik Z
\usetikzlibrary{decorations}
\usetikzlibrary{arrows,shapes}

\usetikzlibrary{decorations.text}
\usetikzlibrary{positioning,fit,calc}

\usetikzlibrary{mindmap,backgrounds} % mind map

\DeclareMathOperator*{\argmax}{arg\,max}
\DeclareMathOperator*{\argmin}{arg\,min}
\definecolor{ublue}{rgb}{0.152,0.250,0.545}
\definecolor{ugreen}{rgb}{0,0.5,0}

\begin{document}
\begin{CJK}{UTF8}{you}


%%% outline
%-------------------------------------------------------------------------


\begin{tabular}{c|c}
	\multicolumn{1}{c|}{$x_i$} &amp; c($x_i$) \\ \hline
	\multicolumn{1}{c|}{$x_1$} &amp; 2        \\
	\multicolumn{1}{c|}{$x_2$} &amp; 1        \\
	\multicolumn{1}{c|}{$x_3$} &amp; 5        \\ \hline
	\multicolumn{2}{c}{$c(X)=8$}         
\end{tabular}


 \begin{tabular}{cccc}
\multicolumn{1}{c|}{$x_i$} &amp; c($x_i$) &amp; P($x_i$) &amp; $c(x_i)\cdot$P($x_i$) \\ \hline
\multicolumn{1}{c|}{$x_1$} &amp; 2        &amp; 0.1      &amp; 0.2                   \\
\multicolumn{1}{c|}{$x_2$} &amp; 1        &amp; 0.3      &amp; 0.3                   \\
\multicolumn{1}{c|}{$x_3$} &amp; 5        &amp; 0.2      &amp; 1.0                   \\ \hline
\multicolumn{4}{c}{$c(X)=0.2+0.3+1.0=1.5$}                                
\end{tabular}
 


%---------------------------------------------------------------------
\end{CJK}
\end{document}


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