DA0-002 Visualization and Reporting Practice Question
Which chart type is best for comparing the distribution of a continuous variable across different categories?
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
✓
Box plot
Box plots provide a summary of distribution including median, quartiles, and outliers, making them ideal for comparing distributions across groups.
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, not distributions.
- ✓
Box plot
Why this is correct
Box plots effectively compare distributions across categories.
- ✗
Histogram
Why it's wrong here
Histograms show distribution of a single variable, not comparisons across categories.
- ✗
Treemap
Why it's wrong here
Treemaps show hierarchical proportions, not distributions.
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