ML functional performance metrics · Question 45 of 60
A model achieves a recall of 90%. The test dataset contains 200 actually positive cases. How many of them did the model miss?
1 answer is correct. Hard
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Answer
- C 20
Explanation
Recall = TP / (TP + FN). With 200 actually positive cases (TP + FN = 200) and 90% recall, TP = 180. Missed cases, i.e. false negatives, are therefore FN = 200 − 180 = 20.