Using the Pearson correlation coefficient to analyze the relationship between two variables is only appropriate if the variables are:
A) scale variables.
B) ordinal variables.
C) linearly related.
D) linearly related and scale variables.

Question

Quizplus · Accepted Answer

Pearson correlation coefficient is only appropriate if the variables are both linearly related and scale variables. Linear relationship means that the relationship between the two variables is best represented by a straight line. Scale variables are the ones that have equal intervals between their values (e.g., height, weight, temperature). Therefore, option D is the best choice as it satisfies both conditions.

Using the Pearson Correlation Coefficient to Analyze the Relationship Between