一般格式：

 \begin{figure}
        \centering
        \includegraphics[scale=0.2]{Figure211.png}
        \caption{In the case of a Gaussian distribution, with θ
corresponding to the mean $\mu$, the regression
function illustrated in Figure 2.10 takes the form
of a straight line, as shown in red. In this
case, the random variable z corresponds to the
derivative of the log likelihood function and is
given by $(x-\mu_{ML})/\sigma^2$, and its expectation that
defines the regression function is a straight line
given by $(\mu-\mu_{ML})/\sigma^2$. The root of the regression
function corresponds to the maximum likelihood
estimator $\mu_{ML}$.}
    \end{figure}
 

若是Figure.eps，則需要在文件前導入兩個包：

\documentclass{beamer}
\usepackage{graphicx}
\usepackage{epstopdf}

LaTeX 圖片插入