Which type of graph is most useful in determining if two variables are correlated?
A) cross- section
B) scatter
C) time- series
D) None of the above answers is correct.

Question

Quizplus · Accepted Answer

A scatterplot is the most useful type of graph for determining if two variables are correlated because it shows the relationship between the variables as a pattern of points on the graph. If the points form a clear pattern, such as a straight line, then there is a strong correlation between the two variables.

Which Type of Graph Is Most Useful in Determining If