Which correlation coefficient demonstrates the strongest relationship?
A) +0.5
B) -0.7
C) +1.2
D) -3.2

Question

Quizplus · Accepted Answer

The correlation coefficient measures the strength and direction of a linear relationship between two variables on a scatterplot. The value of a correlation coefficient ranges between -1 and 1. A coefficient of +1 indicates a perfect positive linear relationship, -1 indicates a perfect negative linear relationship, and 0 indicates no linear relationship. Therefore, -0.7 (choice B) indicates the strongest linear relationship among the given options because +1.2 and -3.2 are outside the possible range for correlation coefficients.

Which Correlation Coefficient Demonstrates the Strongest Relationship