Find Var[Y].

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Question
Consider the joint pmf p(x,y) and marginal pmfs p(x) and p(y) for two discrete random variables X and Y as displayed
in the table below.
X
p(x,y)
1
2
3
p(y)
1
0.125
0.0625
0.1875
0.125
0.5
Y
2
0.0625
0.0625
0.125
0.25
0.5
p(x)
0.1875
0.125
0.3125
0.375
1
Transcribed Image Text:Consider the joint pmf p(x,y) and marginal pmfs p(x) and p(y) for two discrete random variables X and Y as displayed in the table below. X p(x,y) 1 2 3 p(y) 1 0.125 0.0625 0.1875 0.125 0.5 Y 2 0.0625 0.0625 0.125 0.25 0.5 p(x) 0.1875 0.125 0.3125 0.375 1
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Transcribed Image Text:Find Var[Y]. Type your answer...
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