CompTIA Data+ (DA0-001) — Question 234

Which of the following statistical measures is the most suitable and simple measure of the strength and direction of the linear relationship between price and volume?

Answer options

• A. Standard deviation
• B. Interception
• C. Correlation
• D. Covariance

Correct answer: C

Explanation

The correct answer is Correlation because it specifically measures the strength and direction of a linear relationship between two variables. Standard deviation indicates variability, Interception is not a statistical measure relevant to relationships, and Covariance shows the direction of a relationship but does not standardize the strength of that relationship.