When analyzing two variables, the strength of the association between the variables is called the ________.
A) Covariance
B) Standard deviation
C) Correlation coefficient
D) Variance

Question

Quizplus · Accepted Answer

The strength of association between two variables is measured by the correlation coefficient, which ranges from -1 to 1. A value of -1 indicates a perfect negative correlation, 0 indicates no correlation, and 1 indicates a perfect positive correlation. Covariance is a measure of the direction and magnitude of the linear relationship between two variables, but it is affected by the scale of measurement of the variables. Standard deviation and variance are measures of the variability of a single variable, not the association between two variables.

When Analyzing Two Variables, the Strength of the Association Between