A business analyst wants to understand the distribution of delivery times, rather than compare categories or track change over time. Which chart type is most suitable?
4 Data Visualization Online Quiz Questions
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A regional sales team wants to examine whether advertising spend and sales move together. Which chart type should it use?
To show how a total is divided among a few sales channels, a can display each channel's share of total sales.
A chart is intended to show several relationships, but combining them makes the message difficult to interpret. What is the best design response?
- A
Combine every relationship into one chart so readers see all the data at once.
- B
Use separate charts if combining relationships makes the result harder to interpret.
- C
Add more decorative effects to distinguish the relationships.
- D
Use different scales for each relationship without explaining them.
True or false: Adding three-dimensional shapes to a business chart can create visual clutter that competes with the data.
- A
True
- B
False
When they make a legend unnecessary, can identify chart series or categories clearly.
A manager needs to see whether quarterly revenue is meeting a target over time. Which chart best supports that question?
- A
A histogram, because it shows how quarterly revenue is distributed.
- B
A stacked bar chart, because it shows a total divided among components.
- C
A line chart with the target clearly labeled.
- D
A scatterplot, because it compares two measures across regions.
What should a concise chart title state to help readers understand the chart's purpose?
A report presents separate revenue charts for several teams. Which design choice makes differences between teams easier to compare fairly?
- A
Give each team a different vertical scale so its values fill the chart.
- B
Use the same vertical scale for each team's chart.
- C
Remove the vertical scales from all charts.
- D
Use a zero baseline only for the team with the lowest revenue.
True or false: A line chart may use a nonzero baseline to show small changes, provided the scale is clearly labeled and the chart gives enough context to avoid overstating the trend.
- A
True
- B
False
A report compares sales across several charts and groups. Which two practices support fair interpretation? Select all that apply.
- A
Use different axis ranges across charts being compared so each chart emphasizes its own values.
- B
Keep scales consistent when comparing separate charts or groups.
- C
Label units and time periods clearly.
- D
Leave out time periods if the chart includes numerical values.
A chart must remain understandable to readers with color-vision differences and help readers access its message and values. Which measures support those goals? Select all that apply.
- A
Add labels, patterns, or other cues instead of relying on color alone.
- B
Use color as the only way to distinguish important groups.
- C
Provide a text description of the chart's key message.
- D
Provide the data in a table when readers need exact values.
A sales manager wants to compare revenue across product categories. Which chart is the most direct choice?
- A
A line chart that connects products in an arbitrary order.
- B
A bar chart comparing sales across product categories.
- C
A scatterplot with product names on both axes.
- D
A histogram that groups products into time periods.
A manager needs to report whether several teams met a quarterly revenue target and wants readers to compare teams accurately and understand the chart accessibly. Describe a chart design that would meet these needs. Include a line chart, a clearly labeled target, and at least three specific design choices.
A chart includes a reference line or an unusual scale that affects how readers interpret the result. What should the designer do?
- A
Hide the reference line so readers focus on the data.
- B
Explain the reference line or unusual scale.
- C
Use an unexplained scale change to make small differences stand out.
- D
Remove all labels from the chart.
When comparing separate charts of revenue for several teams, which design choice supports a fair comparison?
- A
Use a different vertical scale for each team to make each chart fill more space.
- B
Use the same vertical scale for every team.
- C
Remove the axis labels so the charts look simpler.
- D
Add decorative 3-D effects to emphasize the differences.
A team needs to see how monthly revenue changes across several years. Which chart should it use?
- A
Line chart
- B
Stacked bar chart
- C
Scatterplot
- D
Box plot
True or false: A chart should not rely on color alone to distinguish important groups; it should also use labels, patterns, or other cues.
- A
True
- B
False
An axis shows values such as 12 to represent $12,000. What unit scale should its label state, beyond the currency?
A chart's dark gridlines compete with its data. After reducing their prominence, what role should the remaining gridlines serve?