To add an equation and R2 value in Google Sheets, you can use the SLOPE and INTERCEPT functions. First, enter your data into two columns in Google Sheets. Then, select the two columns and click Insert > Chart. Select the Scatter chart type and click Insert. This will create a chart with your data points. Right-click on the chart and select “Open in Google Sheets”. This will open the chart in a new tab. In the new tab, click Insert > Equation. This will open a text box where you can enter the equation for the line of best fit. To calculate the R2 value, use the SLOPE and INTERCEPT functions. Enter the following formula into the text box: =SLOPE(A1:A10,B1:B10)*INTERCEPT(A1:A10,B1:B10). This will calculate the R2 value for the line of best fit.
