CompTIA Data+ (DA0-001) — Question 102

A data analyst needs to create a data visualization that aids in understanding the cumulative impact of sequentially introduced values that are positive or negative. Which of the following data visualization methods should the analyst use?

Answer options

Correct answer: B

Explanation

The correct choice is B, a waterfall chart, as it effectively displays how sequentially added values contribute to a cumulative total, highlighting both increases and decreases. The other options do not convey cumulative changes: A bubble chart focuses on three dimensions of data, a scatter plot illustrates correlations without showing cumulative effects, and a line chart primarily represents trends over time rather than sequential impact.