Calculation of Pearson r is most justified when the points on a scatterplot:
A) approximate a triangular shape
B) contain a few points that do not fit the overall pattern
C) fall into two distinct groups
D) cluster around a diagonal line

Question

Quizplus · Accepted Answer

The Pearson correlation coefficient (r) is most appropriate when the data points cluster around a straight line, indicating a linear relationship between the two variables. This is best represented by option D, where points clustering around a diagonal line suggest a linear correlation suitable for Pearson r calculation.

Calculation of Pearson R Is Most Justified When the Points