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Evaluate a Churn Model

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Problem

Scenario

You are reviewing a binary classification model that predicts which customers are likely to churn. The team wants a clear framework for judging whether the model is good enough to use in retention campaigns.

Question

What metrics would you use to evaluate a churn model?

What This Tests

  • Choosing evaluation metrics for an imbalanced churn problem
  • Explaining precision and recall tradeoffs
  • Using AUC-ROC for ranking quality
  • Connecting threshold tuning to business cost