DA0-002 Visualization and Reporting Practice Question
A marketing team wants to compare the growth rates of four product categories over the last quarter. Which chart type would best display this?
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
✓
Bar chart
A bar chart is ideal for comparing discrete values across categories, such as the growth rates of four product categories. It allows for easy visual comparison of the heights of the bars. Option A (pie chart) is unsuitable for comparing growth rates as it shows proportions of a whole, not rates. Option B (stacked bar chart) would show cumulative totals, not individual growth rates. Option C (line chart) is better for trends over time, not for comparing discrete categories.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Pie chart
Why it's wrong here
Pie charts show proportions of a whole, not growth rates.
- ✗
Stacked bar chart
Why it's wrong here
Stacked bars show composition of a whole, not individual growth rates.
- ✗
Line chart
Why it's wrong here
Line charts are for trends over time; here we have only one time period.
- ✓
Bar chart
Why this is correct
Bar charts effectively compare discrete values like growth percentages.
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