How can the influence of a third variable be shown on a two-dimensional graph?
A)by allowing the relationship to be nonlinear
B)by allowing the position of the relationship line or curve to shift on the graph
C)by drawing a third axis coming out of the two axes
D)by super-imposing the third variable on the two-dimensional graph

Question

Quizplus · Accepted Answer

By allowing the position of the relationship line or curve to shift on the graph, we can show the influence of a third variable. This is known as a partial correlation plot, where we plot the relationship between two variables holding all other variables constant. The position of the relationship line or curve shifts depending on the level of the third variable. This helps to understand the relationship between two variables while controlling for the effect of a third variable.

How Can the Influence of a Third Variable Be Shown