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\author{王小华}
\title{随机变量的数字特征}
% \subtitle{毕业设计开题报告}
% \institute{早稻田大学 情報生産システム研究科}
% \date{2020年6月27日}
\usepackage{Waseda}

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\kaishu
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\section{数学期望}

    
\begin{frame}{方差的使用}
    \begin{definition}
        \begin{enumerate}
            \item 随机变量的数学期望
            \item 随机变量的方差
            \item 随机变量的标准差
        \end{enumerate}
    \end{definition}
\end{frame}



\section{随机变量的数学期望}

\begin{frame}{随机变量的数学期望}
    \begin{definition}[数学期望]
        \begin{enumerate}
            \item 定义：设$X$是一个随机变量，其数学期望记作$\mu_X$，
            \item 性质： 
            \item 性质1
        \end{enumerate}
    \end{definition}
  
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\end{document}