Trend line on a student' s graph and have concrete decision rules. Model Trendline Linear.
It is also important to show instructional changes on the student' s graph to provide a full picture. Linear Model using Excel Trendline. Trendline analysis is a linear least squares regression tool that can be employed to provide some correlation to data points that are seemingly not linked at all. You can display or hide trendlines in the current default bar, line, area, bubble, or scatter charts.Title Add Trendline and Confidence Interval of Basic Regression Models to Plot. XL2A 4/ 3/ V0L www.