To add a regression line, choose "Add Chart Element" from the "Chart Design" menu. In the dialog box, select "Trendline" and then "Linear Trendline." To add the R 2 value, select "More Trendline ...

Add a linear regression line to the scatter chart by clicking the "Layout" tab, selecting the "Trendline" drop-down box and clicking "Trendline Options." Select the "Linear" option and click the ...

To add a regression line, choose "Add Chart Element" from the "Chart Design" menu. In the dialog box, select "Trendline" and then "Linear Trendline." To add the R 2 value, select "More Trendline ...