DA0-002 Visualization and Reporting Practice Question
A logistics company has data on delivery times (continuous) and distance traveled (continuous). They want to visualize the relationship between these two variables. Which chart type is most appropriate?
⚠ Common exam trap
Watch out — candidates often confuse charts that display distributions (histogram) or trends over time (line chart) with those that show relationships between two continuous variables, leading candidates to overlook the scatter plot as the only appropriate choice for bivariate continuous data.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Scatter plot
A scatter plot is the correct choice because it displays individual data points on a two-dimensional plane, with one continuous variable on the x-axis (distance traveled) and the other on the y-axis (delivery time). This allows analysts to visually assess the strength, direction, and form of the relationship between two continuous variables, including spotting correlations, clusters, or outliers. Unlike other charts, scatter plots are specifically designed for bivariate continuous data, making them ideal for this logistics use case.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Histogram
Why it's wrong here
A histogram bins one continuous variable to show its frequency distribution, so it cannot plot delivery time against distance on paired axes. It is tempting because it suits continuous data, and would be correct for examining the distribution of delivery times alone — for example, whether they are skewed or bimodal.
- ✗
Bar chart
Why it's wrong here
Bar charts compare discrete categories via separate bars, so continuous distance values would need arbitrary binning, discarding the pairing between each delivery's time and distance. They suit comparing totals across categories, such as deliveries per depot.
- ✗
Line chart
Why it's wrong here
A line chart plots a continuous variable against a sequential axis, implying ordered progression between points; delivery time versus distance has no inherent sequence, so connecting points fabricates a trend. It suits time-series data, such as daily delivery volumes across a month.
- ✓
Scatter plot
Why this is correct
A scatter plot places distance on one axis and delivery time on the other, plotting each shipment as a point so correlation, clustering and outliers between two continuous variables become visible. This directly satisfies the stem's relationship-visualisation requirement.
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Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CompTIA exam blueprint
This DA0-002 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DA0-002 exam.