We can infer that there is a strong relationship between two numerical variables when
A) the points on a scatterplot cluster tightly around an upward sloping straight line
B) the points on a scatterplot cluster tightly around a downward sloping straight line
C) either of these options
D) neither of these options

Question

Quizplus · Accepted Answer

A strong relationship between two numerical variables can be identified by looking at a scatterplot. If the points on the scatterplot cluster tightly around either an upward or downward sloping straight line, this indicates a strong relationship between the variables. Therefore, option C is the best choice as it includes both of these possibilities. Options A and B are incorrect as they only describe one possible direction of the relationship, whereas a strong relationship can exist in either direction. Option D is also incorrect as it suggests that there is no way to identify a strong relationship between two numerical variables, which is not true.

We Can Infer That There Is a Strong Relationship Between