Q1. [1] § 3.4: Evaluation metrics for Classification § Assertion and reasoning-based questions § Case study-based questions
In a fire alarm system, if the model predicts "Fire Present" when there is actually no fire, this is classified as :
- (A) True Positive (TP)
- (B) True Negative (TN)
- (C) False Positive (FP)
- (D) False Negative (FN)
Previously asked in CBSE board exam
2026 104 Q4 (i)
Generated by claude-sonnet-4-6 · 2026-06-21 03:19 · grounding rag
Model Answer
(C) False Positive (FP)
When the model predicts "Fire Present" (positive) but there is actually no fire (negative), it is a False Positive — wrongly predicting the negative class as positive.
Explanation
FP = model says "yes" but actual answer is "no." Remember: the first word (False) tells correctness, the second word (Positive) tells what the model predicted. Examiners expect the correct option plus a one-line justification.
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