In the case of a dataset with multiple numeric variables with different units of measurement, which of the below two statements hold true? I. It is necessary to scale data before applying PCA II. It is necessary to scale data before applying Hierarchical clustering.
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In the case of a dataset with multiple numeric variables with different units of measurement, which of the below two statements hold true?
I. It is necessary to scale data before applying PCA
II. It is necessary to scale data before applying Hierarchical clustering.
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