I am new to latex, and saw a lot of other questions asking about this, but I could not find a way to fit my 5 column table in a page.
\begin{table}[h]
\centering
\begin{tabularx}{\textwidth}{|c|c|c|c|c|}
\hline
Area of Interest & Pearson Correlation and p-value & Spearman correlation and p-value & Mean squared error (MSE) & $R^2$ Value\\
\hline
Buoy 44097 and satellite $H_s$ (0.25 dd) & (0.9872, 0.05$<$) & (0.9663, 0.05$<$) & 0.1268 & 0.9683\\
\hline
Buoy 44097 and satellite $H_s$ (0.25- 0.5 dd) & (0.9795, 0.05$<$) & (0.9641, 0.05$<$) & 0.1605 & 0.9586\\
\hline
\end{tabularx}
\caption{Correlation, $R^2$ Value, and MSE values between buoy 44097 and Saral/AltiKa Hs measurements.}
\end{table}


Xcolumn. Note also thanccolumns cannot have line breaks, so the width depend on the content, i.e., use\begin{tabularx}{\textwidth}{XXXXX}or\begin{tabularx}{\textwidth}{cXXXX}, or\begin{tabularx}{\textwidth}{XXccc}, etc. Runtexdoc tabularx, BTW, run alsotexdoc booktabs. – Fran Jun 16 '20 at 01:34