Charles asked his teammates how many hours they practiced swimming during the week. He recorde sample means?
\begin{tabular}{|c|c|c|c|}
\hline \multicolumn{3}{|c|}{ Hours of Swim Practice } \\
\hline 4 & 5 & 3 & 6 \\
\hline 8 & 3 & 5 & 4 \\
\hline 6 & 2 & 4 & 5 \\
\hline 5 & 2 & 3 & 4 \\
\hline
\end{tabular}
1
2
3.75
4.75