z_{1} \\

z_{2}

\end{array}\right]

С.In part (b), you calculated E(y). Which one of the following is correct: \text { i. } E(v)=e^{j \theta} E(z) \text { ii. } E(y) \neq e^{j \theta} E(z) d. In part (c), if the correct answer is (i) then the vector z is called circular symmetric vector. If the correct answer is (ii) then the vector z is not circular symmetric vector. Read through the Appendix A to learn more about this statement.

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