Which of the following graphical methods of data representation is useful for…
2024
Which of the following graphical methods of data representation is useful for depicting category proportions within a single whole?
Answer: C. Pie charts — ConceptProportions describe how categories divide a whole. A useful display therefore represents one complete total and assigns each category a part whose…
- A.
Line charts
- B.
Histograms
- C.
Pie charts
- D.
Scatter plots
Show answer & explanation
Correct answer: C
Concept
Proportions describe how categories divide a whole. A useful display therefore represents one complete total and assigns each category a part whose size is proportional to its share.
Application
A pie chart represents the whole as a circle and each category as a sector. The sector angle and area are proportional to that category’s share, so the parts can be compared within the same total.
Contrast
Line charts emphasize change or trend across an ordered sequence.
Histograms emphasize the frequency distribution of numeric observations across intervals.
Scatter plots emphasize association between two quantitative variables.
Result
Therefore, pie charts are useful for depicting proportions.