<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">\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}{总频次$=8$}         
\end{tabular}
</pre></body></html>