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

Question 9: Find the entropy of the right child. Enter your answer co…

Question 9

+2 marksNumerical answer

Find the entropy of the right child. Enter your answer correct to two decimal places.

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Correct answer: 0.81 (accepted within ±0.1)

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Question 9 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 2 marks.

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  1. Q1Figure question
  2. Q2Figure question
  3. Q3Figure question
  4. Q4Consider the following classification models and their geometric properties: Select the correct many-to-one matching:
  5. Q5Figure question
  6. Q6Figure question
  7. Q7Figure question
  8. Q8Find the entropy of the parent node. Enter your answer correct to two decimal places.
  9. Q10Find the information gain. Enter your answer correct to two decimal places.
  10. Q11. Based on the above data, answer the given subquestions.
  11. Q12. Based on the above data, answer the given subquestions.
  12. Q13. Based on the above data, answer the given subquestions.
  13. Q14Figure question
  14. Q15Perform a 3-NN regressor for the following dataset: