@ Safari File Edit View History Bookmarks Window Help a olympus.mygreatlearning.com @ Great Learning Hierarchical Clustering and PCA: Graded Quiz Question 3/10 = 2 Marks Answer Choices Select ther in the case of a dataset with multiple numeric variables with different units of measurement, which of the O Il only below two statements hold true? ) | only |. It is necessary to scale data before applying PCA i, tis necessary to scale data before applying Hierarchical clustering O Both are false @) Both are true