DA0-002 Visualization and Reporting Practice Question
A business analyst wants to compare the proportion of total sales contributed by each product category in the current year. Which visualization is most suitable?
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
✓
Pie chart
A pie chart effectively shows the proportion of each category as part of a whole, which is ideal for comparing the contribution of each product category to total sales. Option B (scatter plot) is used to show relationships between two variables, not proportions. Option C (line chart) is best for trends over time. Option D (histogram) shows the distribution of a continuous variable.
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 this is correct
Pie charts are ideal for displaying proportions of a whole.
- ✗
Scatter plot
Why it's wrong here
Scatter plots show relationships between two numeric variables.
- ✗
Line chart
Why it's wrong here
Line charts show trends over time, not proportions.
- ✗
Histogram
Why it's wrong here
Histograms show frequency distribution of a continuous variable.
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