Double click on the chart to enter Microsoft Graph...
Click the data series to which you want to add a trendline or moving average.
On the Chart menu, click Add Trendline.
On the Type tab, click the type of regression trendline or moving average
you want.
If you select Polynomial, enter in the Order box the highest power for the
independent variable.
If you select Moving Average, enter in the Period box the number of periods
to be used to calculate the moving average.
The Based on series box lists all the data series in the chart that support
trendlines. To add a trendline to another series, click the name in the box,
and then select the options you want.
Hope this helps!!!
