Machine Learning Techniques · Quiz 2 · 3 Aug 2025 · May 2025 term

Question 9: Perform a 3-NN regressor for the following dataset: | x_1…

Question 9

+3 marksNumerical answer

Perform a 3-NN regressor for the following dataset:

$x_1$	$x_2$	$y$
1	2	3.5
2	1	2.8
3	3	5.1
4	2	4.7
5	3	6.2
6	1	5.9

where, $x = \begin{bmatrix} x_1 & x_2 \end{bmatrix}^T$ is a feature vector and $y$ is the label. What will be the predicted value for the test data point $\begin{bmatrix} 3 & 2 \end{bmatrix}^T$ ? Enter the answer correct to one decimal place.

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Correct answer: 4.2

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Question 9 of 15 in the IIT Madras BS Machine Learning Techniques (MLT) Quiz 2 paper sat on 3 Aug 2025, in the May 2025 term (IIT M DEGREE AN EXAM QDB2 03 Aug 2025). It carries 3 marks.

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