Consider the vector of independently distributed random variables
\begin{equation}Y=\begin{bmatrix}Y_{1} \ Y_{2} \ Y_{3}\end{bmatrix},\end{equation}
where

Which of the following statements is true?

Question

Consider the    vector of independently distributed random variables 
 \begin{equation}Y=\begin{bmatrix}Y_{1} \ Y_{2} \ Y_{3}\end{bmatrix},\end{equation} 
 where 
  
 Which of the following statements is true?

Answer

At least one off-diagonal element of    is not equal to zero.

Answer

is a diagonal matrix

Answer

The set of random variables    satisfy the homoskedasticity assumption.

Answer

Crowdly

Consider the vector of independently distributed random variables \begin{eq...

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