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4.1-3. Let the joint pmf of X and Y be defined by f(x, y) = x+y 32 a. Find fx (x), the marginal pmf of X. b. Find fy (y), the marginal pmf of Y. e. Find P(X + Y = 3). x = 1,2, y = 1, 2, 3, 4.

4.1-3. Let the joint pmf of X and Y be defined by f(x, y) = x+y 32 a. Find fx (x), the marginal pmf of X. b. Find fy (y), the marginal pmf of Y. e. Find P(X + Y = 3). x = 1,2, y = 1, 2, 3, 4.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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4.1-3. Let the joint pmf of X and Y be defined by x + y 32 f(x, y) = a. Find fx (x), the marginal pmf of X. b. Find fy (y), the marginal pmf of Y. x = 1, 2, y = 1, 2, 3, 4. e. Find P(X + Y = 3). f. Find P(X ≤ 3 - Y). g. Are X and Y independent or dependent? Why or why not?
Transcribed Image Text:4.1-3. Let the joint pmf of X and Y be defined by x + y 32 f(x, y) = a. Find fx (x), the marginal pmf of X. b. Find fy (y), the marginal pmf of Y. x = 1, 2, y = 1, 2, 3, 4. e. Find P(X + Y = 3). f. Find P(X ≤ 3 - Y). g. Are X and Y independent or dependent? Why or why not?
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