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

Question 17: Consider the following implementation of PCA: Which of t…

Question 17

+3 marksOne or more correct options

Consider the following implementation of PCA:

Which of the following are correct?

Select all that apply.

  1. A

    X_pca.shape[1] is equal to the original number of features.

  2. B

    The sum of pca.explained_variance_ratio_ is at least 0.95.

  3. C

    len(pca.explained_variance_ratio_) is equal to X_pca.shape[1].

  4. D

    The principal components correspond to the original features with the highest variance.

Show answer

Correct answers

  • B

    The sum of pca.explained_variance_ratio_ is at least 0.95.

  • C

    len(pca.explained_variance_ratio_) is equal to X_pca.shape[1].

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Question 17 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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