A school wants to compare the number of books borrowed by five distinct classes during one month. Which visualization is most appropriate?
7. Visualizing Trends and Patterns Online Quiz Questions
Use this free practice quiz with 20 questions to review 7. Visualizing Trends and Patterns, test your knowledge, and prepare for your next test or exam.
A school wants to identify a gradual increase in electricity use during winter and a sharp drop during a vacation. Which visualization should it choose?
- A
A pie chart divided into budget categories
- B
A box plot comparing test-score spread between classes
- C
A line chart showing monthly electricity use
- D
A map showing population density by region
A researcher needs to identify geographic patterns in rainfall across regions. Which visualization is most directly suited to this question?
- A
A map showing rainfall differences between regions
- B
A histogram grouping rainfall measurements into bins
- C
A line chart showing values in alphabetical region order
- D
A dashboard containing unrelated indicators
Which two visualizations can help reveal patterns in numerical data beyond simply listing exact values? Select all correct choices.
- A
A scatter plot comparing two numerical variables
- B
A decorative three-dimensional bar chart
- C
A histogram grouping numerical values into intervals
- D
A title without any visual or tabular data
Which two practices improve the accessibility of a data visualization? Select all correct choices.
- A
Use color as the only distinction between categories
- B
Provide essential information in a table or text form
- C
Remove labels so the visual remains uncluttered
- D
Add labels, patterns, or symbols when color distinctions may not be sufficient
True or false: If a scatter plot shows that students who study more tend to score higher, the plot alone proves that studying caused the higher scores.
- A
True
- B
False
True or false: Truncating the y-axis of a bar chart generally makes comparisons of bar magnitude more trustworthy.
- A
True
- B
False
What chart type groups numerical values into intervals to show concentration, skew, gaps, or multiple clusters?
Two neighborhoods report the same number of bicycle thefts, but one has twice the population of the other. What normalized measure should be used for a fairer comparison?
A line chart shows values connected across an , usually time, so viewers can identify direction and periods of stability.
When bar length represents magnitude, use a , normally zero, so category comparisons are not exaggerated.
Explain when a dashboard is an appropriate visualization tool and describe the design practices that keep it focused, interpretable, accessible, and maintainable.
A manager needs readers to compare the exact sizes of several components within different totals. Which design decision best follows the guidance on stacked bars?
- A
A stacked bar is always the most precise option for comparing interior segments
- B
Interior segments are easy to compare because every segment begins at zero
- C
A stacked bar should be used only for geographic data
- D
A simpler chart or a table may be better when precise comparisons between parts matter
A line chart shows a sudden drop during a school closure. Which presentation choice would most clearly communicate the finding and its context?
- A
Use only the generic title “Monthly Data”
- B
Use a title that states the important trend and annotate an event that explains an unusual change
- C
Omit the title and let color communicate the message
- D
Use a decorative title that does not identify the population or period
True or false: In the practical visualization process, choosing a chart type should come before defining the question and checking the data.
- A
True
- B
False
A school wants to compare the number of library visits made by students in different grades during the same period. Which visualization is most appropriate?
- A
A line chart
- B
A bar chart
- C
A histogram
- D
A scatter plot
In the example table of library use, what was the exact number of library visits in November?
What chart type groups numerical values into intervals, or bins, to show concentration, skew, gaps, or multiple clusters?
A public report includes a chart whose exact values are important. Which design choice best supports people using screen readers or small screens?
- A
Use color as the only way to distinguish groups
- B
Remove the exact values to keep the visual simple
- C
Provide the essential information in text or a table
- D
Use three-dimensional effects to make values easier to see
A bar chart is intended to compare the magnitude of several categories fairly. Which scale choice is most appropriate?
- A
Use a common baseline, normally zero
- B
Start the vertical axis just below the smallest value
- C
Use a different baseline for each category
- D
Remove the axis labels so the difference is less distracting