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Which of the following statements are true for a design matrix X ∈ Rn×d with d > n? (The rows are n sample points and the columns represent d features.)

Correct Answer: at least one principal component direction is orthogonal to a hyperplane that contains all the sample points

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Machine Learning (ML) MCQ: Which of the following statements are true for a design matrix X ∈ Rn×d with d > n? (The rows are n sample points and the columns represent d features.) | Extra Education