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Suppose that X ~N ([:] . [ 0 1 4.1 Write y = (x+ +x) and= =xtxtx -{(tx+x)- in matrix notations (i) y = X'Ax

Suppose that X ~N ([:] . [ 0 1 4.1 Write y = (x+ +x) and= =xtxtx -{(tx+x)- in matrix notations (i) y = X'Ax and (ii) = = x Bx where I = (x1, x x3)

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