If X and Y are random variables with E(X) =7 and E(Y) = 3, then E(2X + 3Y) is: $$\begin{array} { | l | l | }
\hline \text { A. } & 10 . \
\hline \text { B. } & 23 . \
\hline \text { C. } & 27 . \
\hline \text { D. } & 21 . \
\hline
\end{array}$$

Question

If X and Y are random variables with E(X) =7 and E(Y) = 3, then E(2X + 3Y) is: $$\begin{array} { | l | l | } 
\hline \text { A. } & 10 . \
\hline \text { B. } & 23 . \
\hline \text { C. } & 27 . \
\hline \text { D. } & 21 . \
\hline
\end{array}$$

Quizplus · Accepted Answer

The Answer is B

If X and Y Are Random Variables with E(X) =7