The file P$03\_64.$xlsx lists monthly data since $1950$ on the well$-$known Dow Jones Industrial Average $($DJIA$),$ as well as the less well$-$known Dow Jones Transportation Average $($DJTA$)$ and Dow Jones Utilities Average $($DJUA$).$ Each of these is an index based on $20$ to $30$ leading companies $($which change over time$).$

a$.$ Create a table of correlations of the three difference columns. Round your answers to three decimal places, if necessary.