A trendline in Excel is a line that shows a general trend (upwards/downwards or increase/decline). Thus, it can help in a quick interpretation of the data. The trendline in Excel can be added to a ...
Modeling linear regression in Excel is easier with the Data Analysis ToolPak ... In the dialog box, select "Trendline" and then "Linear Trendline." To add the R 2 value, select "More Trendline Options ...
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