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You have a model with 10,000 predictions and 500 errors. After failure analysis, you find 200 errors caused by mislabeled data. What is the corrected error rate after fixing labels?

hard📝 Application Q15 of 15
Agentic AI - Agent Observability
You have a model with 10,000 predictions and 500 errors. After failure analysis, you find 200 errors caused by mislabeled data. What is the corrected error rate after fixing labels?
A0.07
B0.05
C0.03
D0.02
Step-by-Step Solution
Solution:
  1. Step 1: Calculate original error rate

    Original errors = 500, total = 10,000, so error rate = 500/10,000 = 0.05
  2. Step 2: Remove errors due to mislabeled data

    Corrected errors = 500 - 200 = 300
  3. Step 3: Calculate corrected error rate

    Corrected error rate = 300 / 10,000 = 0.03
  4. Final Answer:

    0.03 -> Option C
  5. Quick Check:

    (500-200)/10000 = 0.03 [OK]
Quick Trick: Subtract mislabeled errors before dividing [OK]
Common Mistakes:
  • Not removing mislabeled errors
  • Dividing mislabeled errors by total
  • Adding mislabeled errors instead of subtracting

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