A scatter plot in which all the points fall in a straight diagonal line would be characteristic of two sets of variables which
A) are perfectly correlated.
B) have a correlation coefficient of 0.0.
C) show equal amounts of variability.
D) are characterized by none of these.

Question

Quizplus · Accepted Answer

A straight diagonal line suggests that as one variable increases, the other variable also increases at a constant rate. This is a perfect positive correlation and occurs when the correlation coefficient is +1.

A Scatter Plot in Which All the Points Fall in a Straight