Adding a trendline (fit) in a chart
- Create the chart and higlight it by clicking anywhere on the chart.
- Pull down the Chart menu on the menu bar and select the Add
- Select the type of trendline you want to add. Click the Options
tab and select the Display equation on chart and Display R-squared
on chart options. Then hit OK.
- The trendline will appear on the chart. By clicking the displayed equation
of the trendline you are able to change the format, for example the number
of digits dsplayed.