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Consider the following functions of the random variables y1, y2, m, and m: 1 W1=Z(yl+y2+y3+y4) 1 1 W2 = ih + 92) $93 +94) (a)

Consider the following functions of the random variables y1, y2, m, and m: 1 W1=Z(yl+y2+y3+y4) 1 1 W2 = ih + 92) $93 +94) (a) State the above in matrix notation. (b) Find the expectation of the random vector W. (c) Find the covariance matrix of W

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