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What does precision measure?

  1. A Of everything the model flagged as positive, the proportion that genuinely was
  2. B Of all actual positives, the proportion found
  3. C The variance of predictions
  4. D The number of features used
Answer

Of everything the model flagged as positive, the proportion that genuinely was

Precision and recall trade off against each other, and the threshold that balances them is a business decision rather than a technical one.

All Machine Learning MCQs

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