CompTIA Data+ (DA0-001) — Question 203

Which of the following data types must be used when working with variables that require classification into two or more groups before analysis?

Answer options

• A. Discrete
• B. Numerical
• C. Alphanumeric
• D. Categorical

Correct answer: D

Explanation

The correct answer is D. Categorical data types are specifically designed for grouping items into distinct categories, making them ideal for classification tasks. The other options, such as Discrete, Numerical, and Alphanumeric, do not provide the necessary structure for categorizing data into groups effectively.