Residual Plots. 15.3. Residuals. The difference between actual data points and ones predicted by the regression line (line of best fit). If the residuals are small, the model is good. Predicted Value. Residual. Observed Value. Finding Residuals. From the graph.
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
From the graph
From the equation (predicted outcomes)
The top two graphs show residuals that are too large (too high on the y-axis)
The bottom two graphs show patterns which mean we shouldn’t use a linear model