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Machine Learning Practice, End Term

January 2023 term, 30 Apr 2023, Set QPD1-S2

Learning mode

Question 1

+2−0Single correct

______________ generates a bunch of normally-distributed clusters of points with specific mean and standard deviations for each cluster.

Select one option

A.
sklearn.datasets.make_clusters()
B.
sklearn.datasets.make_centers()
C.
sklearn.datasets.make_normal_clusters()
D.
sklearn.datasets.make_blobs()

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\_\_\_\_\_\_\_\_\_\_\_\_\_\_ generates a bunch of normally-distributed clusters of points with specific mean and standard deviations for each cluster. Why is data preprocessing necessary? Which of the following is correct with respect to R2-score?