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Given a BI dashboard showing counts of errors found in Gerber, drill, and component files, which visualization best helps identify the file type with most errors?

medium📝 visualization Q13 of 15
PCB Design - Manufacturing Output
Given a BI dashboard showing counts of errors found in Gerber, drill, and component files, which visualization best helps identify the file type with most errors?
ATable listing file names only
BLine chart showing error counts over time
CScatter plot of file sizes vs error counts
DPie chart showing error counts by file type
Step-by-Step Solution
Solution:
  1. Step 1: Understand the goal of visualization

    The goal is to identify which file type has the most errors.
  2. Step 2: Choose visualization type

    A pie chart clearly shows proportions of errors by file type, making comparison easy.
  3. Final Answer:

    Pie chart showing error counts by file type -> Option D
  4. Quick Check:

    Pie chart = compare parts of whole [OK]
Quick Trick: Use pie charts to compare parts of a whole quickly [OK]
Common Mistakes:
MISTAKES
  • Using line charts for categorical comparison
  • Choosing tables without summary
  • Scatter plots confuse error focus

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