Variables X and Y are independent of each other. If we plot X on the horizontal axis and Y on the vertical axis, the line that connects combinations of X and Y plotted in a two-variable diagram could be
A)parallel to the horizontal axis.
B)downward-sloping.
C)either upward-sloping or downward-sloping.
D)upward-sloping.

Question

Quizplus · Accepted Answer

Since X and Y are independent of each other, there is no relationship between them. Therefore, the line that connects combinations of X and Y plotted in a two-variable diagram would be a straight line parallel to the horizontal axis. This is because the value of X does not affect the value of Y, and vice versa.

Variables X and Y Are Independent of Each Other