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Suppose Y ~ N3(0, o213) be a multivariate normal random vector. Define 2 -1 -1 A = -1 2 -1 -1 -1 2 Let B

Suppose Y ~ N3(0, o213) be a multivariate normal random vector. Define 2 -1 -1 A = -1 2 -1 -1 -1 2 Let B = 13 - A. What are the distributions of YAY and Y BY, respectively? Are they independent or not

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