Yeetadab803 Yeetadab803 29-05-2023 Mathematics contestada Consider the linear model y = XB+e. Let X(₁) denote the X matrix with the ith row x deleted. Without loss of generality, we can partition X as X (i) [*] so we can write X'X = X'(i)X(i) + ï¿ï½, o