$\begingroup$

Let $E(x)$ be the expected value of random variable $x$. $c$ is a constant, then what will be the $E(cx)$ in simplest form and why?

$\endgroup$ 2

1 Answer

$\begingroup$

For the discrete case: $$ \mathbf{E} \varphi(X)=\sum_{k=0}^{\infty}c k p_k= c \sum_{k=0}^{\infty}k p_k = c \mathbf{E}X $$

that's if I understand your question correctly, of course.

$\endgroup$ 2

Your Answer

Sign up or log in

Sign up using Google Sign up using Facebook Sign up using Email and Password Submit

Post as a guest

Post Your Answer Discard

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy