(iii) If X and Y are two discrete random variables, then E(X + Y) = E(X) + E(Y) provided E(X) and E(Y) exist.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Prove the theorem 

(iii) If X and Y are two discrete random variables, then E(X + Y) = E(X) + E(1)
provided E(X) and E(Y) exist.
Transcribed Image Text:(iii) If X and Y are two discrete random variables, then E(X + Y) = E(X) + E(1) provided E(X) and E(Y) exist.
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