Kizspy | Question: 48 (Choose 1 answer)
In PCA, how does the explained variance ratio of each principal component help in determining the optimal number of components?
A. By selecting components with the highest explained variance ratio
B. By selecting components with the lowest explained variance ratio
C. By ignoring the explained variance ratio and always using all components
D. By using the cumulative explained variance ratio to find an elbow point in the scree plot
