<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">\qquad
 \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}{$c_{\mathbb{E}}(X)=0.2+0.3+1.0=1.5$}                                
\end{tabular}
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