\begin{table}%t10
\caption{\label{final_distmod}Summary of the average and median distance moduli, for the three subsamples defined in the~text.}             
%\centering
\par
\begin{tabular}{l l l l}       
\hline\hline \noalign{\smallskip}       
Subsample & Stat. type & $\overline{(V-M_{{\rm V}})_0}$
                       & $\overline{(I-M_{{\rm I}})_0}$ \\
\hline
all 27    & w. average & $19.07\pm 0.19$ & $19.07\pm 0.19$ \\
          &   median   & $19.11\pm 0.12$ & $19.11\pm 0.12$ \\ \hline
19 good   & w. average & $19.10\pm 0.14$ & $19.11\pm 0.14$ \\
          &   median   & $19.13\pm 0.10$ & $19.12\pm 0.13$ \\ \hline
 9 best   & w. average & $19.10\pm 0.15$ & $19.12\pm 0.16$ \\
          &   median   & $19.13\pm 0.07$ & $19.12\pm 0.07$ \\ \hline
\end{tabular}
\tablefoot {The given uncertainties represent the rms scatters, not the errors of the respective average distance moduli.}
\end{table}