Generate a correlation matrix to see the correlations between Revenue and its first few lags. These should be approximately the same as the autocorrelations from part a$.($Autocorrelations are calculated slightly differently than regular correlations, which accounts for any slight discrepancies you might notice$$but these discrepancies should be minor.$)$ Round your answers to three decimal places, if necessary.

CorrelationRevenueLag$1($Revenue$)$ Lag$2($Revenue$)$ Lag$3($Revenue$)$