Your regression may have a high r-square value or high correlation, but the residual plot may suggest something else.

You use the 95% individual confidence interval option to display the 95% upper- and lower-confidence limits for an individual value. To superimpose a regression line on a plot, refer to Doing More ...

The line of best fit is an output of regression analysis that represents the relationship between two or more variables in a dataset.

A simple linear regression of Oxygen on RunTime is performed, and a plot of Oxygen*RunTime is requested. The fitted model, the regression line, and the four default statistics are also displayed in ...