Question: 7. Do not use computer. Given the data -3 1 3 1 2 -2 X = 1 0 0 3 0 4 L2 2

7. Do not use computer. Given the data -3 1 3 1 2 -2 X = 1 0 0 3 0 4 L2 2 0 a) Obtain the mean corrected data matrix, Xc = = X - 1x'. b) Verify the columns of X are linearly dependent. Specify an a' = [a, 2, 3] vector that establishes the dependence. c) Obtain the sample covariance matrix and verify that it is singular.

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