If the data in a scatter plot form a nearly perfect circle, the Pearson correlation would be approximately ____.
A) +.8 or +.9
B) − .8 or − .9
C) 1.00
D) zero

Question

Quizplus · Accepted Answer

The Pearson correlation measures linear correlation between two variables. A nearly perfect circle in a scatter plot indicates that there is no linear relationship between the variables, hence the Pearson correlation would be approximately zero.

If the Data in a Scatter Plot Form a Nearly