Two independent random variables are defined with the following distributions: X 1 2 3 (a) Р 0.5 0.2 0.3 Y p 1 2 0.2 4 0.6 Determine the PDF of the sum of X and Y using convolutions. 0.2 (b) Determine the mean and variance of the sum by treating the result as the sum of two independent random variables.

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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## Problem Statement

Two independent random variables are defined with the following distributions:

| X | p   |     | Y | p   |
|---|-----|-----|---|-----|
| 1 | 0.5 |     | 1 | 0.2 |
| 2 | 0.2 |     | 2 | 0.2 |
| 3 | 0.3 |     | 4 | 0.6 |

### Tasks

(a) **Determine the PDF of the sum of X and Y using convolutions.**

(b) **Determine the mean and variance of the sum by treating the result as the sum of two independent random variables.**
Transcribed Image Text:## Problem Statement Two independent random variables are defined with the following distributions: | X | p | | Y | p | |---|-----|-----|---|-----| | 1 | 0.5 | | 1 | 0.2 | | 2 | 0.2 | | 2 | 0.2 | | 3 | 0.3 | | 4 | 0.6 | ### Tasks (a) **Determine the PDF of the sum of X and Y using convolutions.** (b) **Determine the mean and variance of the sum by treating the result as the sum of two independent random variables.**
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