DA0-002 Visualization and Reporting Practice Question
A dashboard needs to show sales trends for each of five regions over the past year. The intended audience wants to compare trends easily. Which chart type is best?
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
✓
Line chart with multiple lines
A line chart with multiple lines allows the audience to easily compare trends across the five regions over time. Each region can be represented by a separate line, making it simple to see upward or downward trends and compare them side by side. In contrast, a pie chart shows parts of a whole and is not suitable for trend comparison; a stacked bar chart emphasizes composition rather than trends; and an area chart is similar to a line chart but can obscure overlapping trends due to stacking.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Line chart with multiple lines
Why this is correct
Multiple line charts clearly show each region's trend over time.
- ✗
Pie chart
Why it's wrong here
Pie charts show proportions at a single point in time, not trends.
- ✗
Stacked bar chart
Why it's wrong here
Stacked bars emphasize total and composition, not individual trends.
- ✗
Area chart
Why it's wrong here
Area charts can show magnitude but may obscure individual trends when stacked.
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