Answered: A discrete random variable X has…

A discrete random variable X has probability distribution a)Find E[X + 2Y − 1_A + 5]. b)Find E[X · 1_A]. c)Find V ar[X].

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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Question

A discrete random variable X has probability distribution

a)Find E[X + 2Y − 1_A + 5].

b)Find E[X · 1_A].

c)Find V ar[X].

-1
7
P(X = x)
2
6
6
6
Let Y N(3,7) and let A be the event that X > 4.

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