Which of the following must be true in order to calculate the Pearson correlation coefficient?
A) The x variable must be interval or ratio scale of measurement.
B) The y variable must be interval or ratio scale of measurement.
C) The data must appear to be linear.
D) All of the above.

Question

Quizplus · Accepted Answer

The Pearson correlation coefficient is a measure of the linear relationship between two variables. In order to calculate the Pearson correlation coefficient, the following conditions must be met:* The x variable must be interval or ratio scale of measurement.* The y variable must be interval or ratio scale of measurement.* The data must appear to be linear.

Which of the Following Must Be True in Order to Calculate