DA0-002 Visualization and Reporting Practice Question
Which TWO chart types are appropriate for visualizing the distribution of a continuous variable? (Select two.)
⚠ Common exam trap
A common mix-up: candidates confuse a bar chart with a histogram, thinking both can show distribution, but a bar chart is for categorical data while a histogram is specifically for continuous data with no gaps between bars.
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
A box plot (B) is appropriate for visualizing the distribution of a continuous variable because it displays the median, quartiles, and potential outliers, providing a five-number summary of the data. A histogram (D) is also appropriate as it groups continuous data into bins and shows the frequency distribution, revealing the shape, central tendency, and spread of the 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.
- ✗
Bar chart
Why it's wrong here
Bar charts compare categories, not distribution of continuous data.
- ✓
Box plot
Why this is correct
Box plots show quartiles, median, and outliers.
- ✗
Line chart
Why it's wrong here
Line charts show trends, not distribution.
- ✓
Histogram
Why this is correct
Histograms show distribution via bins.
- ✗
Pie chart
Why it's wrong here
Pie charts show proportions, not distribution.
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