DA0-002 Visualization and Reporting Practice Question
A data analyst needs to display the distribution of customer ages in a dataset containing 10,000 records. Which TWO chart types are appropriate? (Choose two.)
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
Histograms show distribution of a continuous variable, and box plots show distribution with quartiles and outliers. Pie charts and bar charts are not for distribution.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Box plot
Why this is correct
Correct. Box plots show distribution, median, quartiles, and outliers.
- ✗
Pie chart
Why it's wrong here
Pie charts show proportions, not distribution.
- ✓
Histogram
Why this is correct
Correct. Histograms display frequency distribution of a continuous variable.
- ✗
Bar chart
Why it's wrong here
Bar charts compare categories, not continuous distribution.
- ✗
Line chart
Why it's wrong here
A line chart maps continuous data points over a sequential axis, such as time, to show trends, but customer ages in a 10,000-record dataset are categorical or discrete intervals, not a time series. It is tempting because a line can visually connect age groups, implying progression, and would be correct if the analyst needed to display age changes over years or months.
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