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Machine Learning Techniques · Quiz 2 · 12 Apr 2026 · January 2026 term · Set 1-3

Question 4: Which among the following is TRUE for k-NN algorithm? Sel…

Question 4

+3 marksOne or more correct options

Which among the following is TRUE for k-NN algorithm? Select all that apply.

Select all that apply.

  1. A

    1-nearest neighbour is sensitive to outliers.

  2. B

    k-NN can only be applied to a classification problem.

  3. C

    As k increases, the model is more likely to overfit.

  4. D

    The bias increases with the increase in the value of k.

  5. E

    The variance increases with the increase in the value of k.

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Correct answers

  • A

    1-nearest neighbour is sensitive to outliers.

  • D

    The bias increases with the increase in the value of k.

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Question 4 of 15 in the IIT Madras BS Machine Learning Techniques (MLT) Quiz 2 paper sat on 12 Apr 2026, in the January 2026 term (Machine Learning Techniques 06 Apr 26). It carries 3 marks.

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