Question: 8. The following table displays the weights for computing the principal components and the data for two observations. The mean and standard deviation for X1

8. The following table displays the weights for

8. The following table displays the weights for computing the principal components and the data for two observations. The mean and standard deviation for X1 are 4.2 and 1.4, respectively. What is the z-score of X1 for observation 1? PC1 PC2 Weights X1 X2 -0.78 0.51 0.82 -0.65 1 2 4.45 12.08 Observation 1 Observation 2 1.43 8.62 A. 0.18 B. 0.17 C. 0.73 D. 0.21

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