can do the same with a column chart to show a smooth trend over time. Select the series,
right-click, and select Add Trendline. For charts that project data, you can also add error
bars that define the upper- and lower-error limits of your projections by using standard sta-
tistical measures. You’ll find these options on the Error Bars tab of the Format Data Series
dialog box.
NOTE
For more information on how you can display detailed analyses in Excel charts, see
Special Edition Using Microsoft Excel 2003, by Patrick Blattner (published by Que, ISBN:
0-7897-2953-9).
Troubleshooting
Formatting Combination Charts ...
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