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Machine Learning Practice · End Term · 13 Sept 2026 · May 2026 term

Question 21: An email service develops a machine learning model to au…

Question 21

+3 marksOne correct option

An email service develops a machine learning model to automatically identify phishing emails.
Any email predicted as phishing is immediately moved to the user's spam folder without notification. A legitimate email incorrectly marked as phishing could cause users to miss important messages, while an actual phishing email that is not detected can still be reported manually by the user.
The company wants to minimize the number of legitimate emails incorrectly classified as phishing.
Which evaluation metric should be given the highest priority while selecting the model?

  1. A

    Accuracy

  2. B

    Precision

  3. C

    Recall

  4. D

    F1-score

Show answer

Correct answer

  • B

    Precision

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Question 21 of 30 in the IIT Madras BS Machine Learning Practice (MLP) End Term paper sat on 13 Sept 2026, in the May 2026 term (Machine Learning Practice 13 Sep 26). It carries 3 marks.

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