\begin{table}%t13
\caption{\label{tab13}The group means for the parameters of the GCs of LMC.} 
\small%\centering
\par
\begin{tabular}{cccc}
\hline\hline
Variables&Cluster 1&Cluster 2&Cluster 3\\
\hline No. of members&16&4&3\\
$\langle[{\rm Fe/H}]\rangle$&--0.37&--1.6&--0.34\\
$\langle B-V\rangle$&0.33&0.55&0.18 \\
$\langle \mu_V\rangle$&18.33&17.40&18.49\\
$\langle c\rangle$&1.39&1.26&0.68\\
$\langle R_{\rm c}\rangle$(pc)&2.62&3.72&10.87\\
$\langle R_{\rm gc}$ (kpc)&3.18&1.5&2.85\\
$\langle \log~({\rm Age})\rangle$ (yr)&8.09&10.20&7.77\\
\hline
\end{tabular}
\end{table}