CompTIA Data+ (DA0-001) — Question 55

Which of the following BEST describes standard deviation?

Answer options

• A. A measure that is used to establish a relationship between two variables
• B. A measure of how data is distributed
• C. A measure of the amount of dispersion of a set of values
• D. A measure that is used to find the significant difference between variables

Correct answer: C

Explanation

The correct answer is C, as standard deviation specifically quantifies the dispersion of a dataset around its mean. Option A pertains to correlation, while B describes distribution without focusing on variability, and D relates to hypothesis testing rather than a measure of spread.