1. Suppose A - (29) (21) 3 = B = (a) Calculate AB. (b) Calculate BA. (c) Compare your answers in (a) and (b). Are they t
Posted: Mon Jul 11, 2022 11:56 am
1. Suppose A - (29) (21) 3 = B = (a) Calculate AB. (b) Calculate BA. (c) Compare your answers in (a) and (b). Are they the same? Should they be the same? (d) Suppose X is a random variable with mean and variance o². Cal- culate the mean vector and variance matrix of the random vector Y = (X, 2+3X).