Red and yellow creates orange. Yellow and blue creates green. The secondary colors can be mixed further to create additional shades. Tertiary colors are the result of a primary and secondary color mixed together. For example, orange mixed with red creates red-orange.
An influential point is an outlier that greatly affects the slope of the regression line. One way to test the influence of an outlier is to compute the regression equation with and without the outlier. This type of analysis is illustrated below.
Lesson 11: Influential Points. Introduction. In this lesson, we learn about how data observations can potentially be influential in different ways. If an observation has a response value that is very different from the predicted value based on a model, then that observation is called an outlier.