3. The Cov(X) of a random vector X'= (X₁, ..., Xn) is defined as E{(X-E(X))'(X-E(X)}. True or false, give reasoning.

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A: Solving the following problem

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Q: P(C|m')

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Q: Suppose that P(A') = 0.4, P(B') = 0.5, P(An B) = 0.4. Find P(A), P(B), P(AUB), P(An B') and P(AIB).

A: given data P(A') =0.4P(B') = 0.5P(A∩B) = 0.4

Q: (d) P(A)= (e) P(B) = (1) A AND B =

A: As per our guidelines we can solve next three sub part of question and rest can be reposted.…

Q: How do I write COV(Y,Z) and Covariance(X,Z) in expected Form

A: COV(Y,Z)=? And  COV(X,Z)=? IN EXPECTED FORM

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Q: 3.a. Suppose Var(X1) = 2.25, Var(X2) = 2.56, and Cov(X1, X2) = -0.25. Find the correlation p of X1…

A: Correlation (X1,X2)= cov(X1,X2)/√V(X1)*V(X2) = -0.25/√2.25*2.56 = -0.10417