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5. Let x ~ N3(μ, E) with ₁1 = 19, 022 = 36, E(x) = 325, 012 = 11, E(123) = 290, E(x2x3) = 621, E(x₁) = 21, E(x₂) = 40 an
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5. Let x ~ N3(μ, E) with ₁1 = 19, 022 = 36, E(x) = 325, 012 = 11, E(123) = 290, E(x2x3) = 621, E(x₁) = 21, E(x₂) = 40 an
5. Let x ~ N3(μ, E) with ₁1 = 19, 022 = 36, E(x) = 325, 012 = 11, E(123) = 290, E(x2x3) = 621, E(x₁) = 21, E(x₂) = 40 and E(x3): 15. = a) Determine Cov(x, x') b) Let u = ₁ + 2x2. Determine E(u) and o. c) Find Cov(x, u).
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