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Module 3: Classification and Prediction

20232m

Classification is an example of ______ learning whereas clustering is an example of ______ learning.

(i) Supervised, Unsupervised
(ii) Unsupervised, Supervised
(iii) Machine, Supervised
(iv) Supervised, Machine

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Answer: (i) Supervised, Unsupervised

Classification learns from data in which the class label of every example is already known — a 'supervisor' supplies the correct output that the model is trained to reproduce — so it is supervised learning. Clustering receives unlabelled data and must discover the group structure on its own, with no target output to guide it, so it is unsupervised learning.

Option (ii) swaps the two. Options (iii) and (iv) are wrong because machine learning is the umbrella category that contains both supervised and unsupervised learning, not the counterpart of supervised learning.

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