['To view the Correlation Coefficient, turn on "DiaGnosticOn" [2nd] "Catalog" (above the \'0\'). Scroll to DiaGnosticOn. [Enter] [Enter] again. ... ', 'Now you will be able to see the \'r\' and \'r^2\' values. Note: Go to [STAT] "CALC" "8:" [ENTER] to view. Prev: TI-84: Least Squares Regression Line (LSRL)']