Latex table

\documentclass{article} 
\usepackage{float}% Provide float Floating environment 
\usepackage{booktabs}% Provide command \toprule、\midrule、\bottomrule
 
\begin{document}
 
% Classic three line table 
\begin{table}[H]
%\caption{\textbf{Example 1}}% title 
\centering% Center the table 
\begin{tabular}{cc}% four c It means that the table has four columns , Center all content 
\toprule% The first horizontal line 
Scaling&Implication \\
\midrule% The second horizontal line  
1&equal importance\\
3&The former is slightly more important than the latter\\
5&The former is obviously more important than the latte\\
7&The former is more important than the latter\\
9&The former is extremely important than the latter\\
2,4,6,8&Represents the median value of the above adjacent judgments\\
reciprocal&$a_{ij}=1/a_{ij}$\\
\bottomrule% The third horizontal line 
\end{tabular}
\end{table}





\begin{table}[H]
\centering% In the middle 
\begin{tabular}{|c|c|}
\hline
The value range of  $\vert r \vert$ & meaning of $ \vert r \vert $ \\
\hline
0.00-0.19 & very low correlation  \\
\hline
0.20-0.39&low correlation\\
\hline
0.40-0.69&Moderately relevant\\
\hline
0.70-0.89&Highly correlated\\
\hline
0.90-1.00&Very high correlation\\
\hline
\end{tabular}
\end{table}
\end{document}
\end{document}