wid308
- 5
- 0
hello!
can any1 please help me with the following proofs? thanks
let X and Y be random variables. prove the following:
(a) if X = 1, then E(X) = 1
(b) If X ≥ 0, then E(X) ≥ 0
(c) If Y ≤ X, then E(Y) ≤ E(X)
(d) |E(X)|≤ E(|X|)
(e) E(X)= \sumP(X≥n)
can any1 please help me with the following proofs? thanks
let X and Y be random variables. prove the following:
(a) if X = 1, then E(X) = 1
(b) If X ≥ 0, then E(X) ≥ 0
(c) If Y ≤ X, then E(Y) ≤ E(X)
(d) |E(X)|≤ E(|X|)
(e) E(X)= \sumP(X≥n)