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Why might a pie chart with many small slices be less effective than a bar chart?

hard📝 Conceptual Q10 of 15
Power BI - Basic Visualizations
Why might a pie chart with many small slices be less effective than a bar chart?
ABar charts cannot show parts of a whole
BSmall slices are hard to distinguish and compare visually
CPie charts cannot show percentages accurately
DPie charts require more data preparation
Step-by-Step Solution
Solution:

  1. Step 1: Analyze visual clarity of pie charts with many slices

    Many small slices make it difficult to see differences and compare sizes.

  2. Step 2: Compare with bar charts

    Bar charts show values side by side, making small differences easier to see.

  3. Final Answer:

    Small slices are hard to distinguish and compare visually -> Option B

  4. Quick Check:

    Many small slices = poor pie chart clarity [OK]
Quick Trick: Use bar charts for many small categories, not pie charts [OK]
Common Mistakes:
  • Believing pie charts can't show percentages
  • Thinking pie charts need more data prep

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