MAI391_-_FA_2023_-_FE_2020.webp

(Choose 1 answer)
(See picture)
Α. -4/3
Β. 2/3
C. 8/3
D. -1
E. 2

Given a dataset consisting of the following vectors X1 = [022]T, X2 = [102]T, X3= [2-2-1]T.Let S = [sij] be the covariance matrix of this dataset. Find $22.