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.
Definition of outlier. 1 : a person whose residence and place of business are at a distance His house was a place of refuge for outliers. 2 : something (as a geological feature) that is situated away from or classed differently from a main or related body The island is an outlier on the southeast side of the archipelago.