CompTIA Data+ (DA0-001) — Question 183

The process of performing initial investigations on data to spot outliers, discover patterns, and test assumptions with statistical insight and graphical visualization is called:

Answer options

• A. a t-test.
• B. a performance analysis.
• C. an exploratory data analysis.
• D. a link analysis.

Correct answer: C

Explanation

The correct answer is C, an exploratory data analysis, as it specifically focuses on investigating data to find patterns and outliers. A t-test (A) is a statistical test to compare means, while performance analysis (B) evaluates efficiency or effectiveness, and link analysis (D) examines relationships between entities, none of which cover the broad exploration of data like exploratory data analysis does.