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To display a regression curve
(1) Draw a clustered line graph or clustered column graph.
• A regression curve can be drawn for a line, column, or scatter graph only.
• The above shows a stacked line graph.
(2) With the stylus, tap any point of the data for which you want to draw the regression
curve.
(3) Use the [Series] menu to select the type of regression curve you want.
• You could also tap the down arrow button next to the third tool button from the left,
and tap an icon to select the regression curve type.
• See “Series Menu” on page 13-8-12 for information about regression curve types.
• Here, we will select quartic regression.
13-8-18
Graphing
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