Unsupervised Learning MCQs

Topic-wise practice questions for Artificial Intelligence & Machine Learning. Test your knowledge, check solutions on demand, and pace your preparation.

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Q11medium
You have data with 50 features and you suspect many are redundant. You use PCA to keep only 5. What is the impact on your supervised model?
Q12easy
How does Hierarchical Clustering differ from K-Means?
Q13easy
In Scikit-Learn's KMeans, what does the n_clusters parameter represent?
Q14medium
Why is scaling data (Standardization) highly recommended before performing K-Means clustering?
Q15easy
What is the main objective of Principal Component Analysis (PCA)?