DA0-002 Visualization and Reporting Practice Question
A dashboard designer wants to highlight the sales performance of individual sales representatives compared to team averages. Which chart type is most suitable for this comparison?
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 with average line
A bar chart with an average line is ideal for comparing individual sales representatives' performance to the team average because each bar clearly shows the magnitude of each value, and the average line provides a reference for comparison. This makes it easy to see who is above or below average. In contrast, a scatter plot (A) is used for correlation between two variables, a pie chart (C) shows proportions of a whole, and a line chart (D) shows trends over time, none of which directly compare individual values to an average.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Scatter plot
Why it's wrong here
Scatter plots show relationship between two variables, not comparison of multiple values to a single average.
- ✓
Bar chart with average line
Why this is correct
Bar chart allows easy comparison of each rep's sales to the average line.
- ✗
Pie chart
Why it's wrong here
Pie charts show proportions of a whole, not comparisons to an average.
- ✗
Line chart
Why it's wrong here
Line charts show trends over time, not discrete comparisons to an average.
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