Q1. [1] § 3.3: Accuracy and Error § Assertion and reasoning-based questions
Which of the following is defined as the measure of balance between precision and recall?
- (a) Accuracy
- (b) F1 Score
- (c) Reliability
- (d) Punctuality
Previously asked in CBSE board exam
2023 104 Q2 (vi)
Generated by claude-sonnet-4-6 · 2026-06-21 03:18 · grounding rag
Model Answer
(b) F1 Score
Explanation
F1 Score is defined as the harmonic mean of precision and recall, combining both into a single metric. The source explicitly states: "F1-Score provides a way to combine both precision and recall into a single measure that captures both properties." Accuracy measures correct predictions overall; reliability and punctuality are not ML evaluation metrics.
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