Which chart type is most appropriate for directly comparing magnitudes across…
2019
Which chart type is most appropriate for directly comparing magnitudes across discrete categories?
Answer: B. Column chart — Concept: A comparison display should encode separate categories against a common quantitative scale so their magnitudes can be read consistently. Bar and…
- A.
Line chart
- B.
Column chart
- C.
Pie chart
- D.
Graphs
Show answer & explanation
Correct answer: B
Concept: A comparison display should encode separate categories against a common quantitative scale so their magnitudes can be read consistently.
Bar and column charts use equal-width rectangles measured from a shared baseline; the rectangle length or height encodes the numerical value.
Application: The stem asks for comparison of values across categories. A column chart gives each category a separate vertical rectangle whose height is read from the same baseline.
Contrast
Line chart: connected points emphasize change across an ordered or continuous axis.
Column chart: vertical rectangles on a shared baseline encode the magnitudes of discrete categories.
Pie chart: sectors encode how categories divide a single whole.
Graphs: this is an umbrella term rather than one specific visual encoding.
Cross-check: Comparing the vertical heights from one baseline lets the category magnitudes be compared directly, which matches the requested task.
Result: The appropriate chart type is Column chart.