can a variable explain a single variable in a pca which variable explains variability? how is variability explained by the single variable? what is the principal component of a variable what type of variable is variability explained by? how do you determine whether variability is explained by a single variable how much variability explained by a single variable explain what is true about a single variable? what is a single variable used for in an pca what is the difference between a pca and pca how to determine the variability in a pca how much of the variability of a single variable is explained by an untransformed set of variables? how much variability explain multiple variables how is variability explained by the single variable? what is one single variable in the pca which variable explains total variability what is the purpose of a single variable pca how is variability explained in a single variable how much of the variation can be explained by a single variable what variable summarizes the variability