The joint distribution of X and Y is: Pxy(0,0)=1/15, P (0,1)=a, Py(0,2)=2/15 X,Y X,Y X,Y Pxy(1,0)=a, Px,y(1,1)=b, Px,y(1,2)=a Pxy(2,0)=2/15, Py(2,1)=a, Py(2,2)=1/15 X,Y You want "a" to make the variance of Y as minimum as possible. X,Y X,Y ID The variance of Y equals. Select one: а. 2/5 b. 3/10 с. 1/2 d. 6/25 e. 3/5
The joint distribution of X and Y is: Pxy(0,0)=1/15, P (0,1)=a, Py(0,2)=2/15 X,Y X,Y X,Y Pxy(1,0)=a, Px,y(1,1)=b, Px,y(1,2)=a Pxy(2,0)=2/15, Py(2,1)=a, Py(2,2)=1/15 X,Y You want "a" to make the variance of Y as minimum as possible. X,Y X,Y ID The variance of Y equals. Select one: а. 2/5 b. 3/10 с. 1/2 d. 6/25 e. 3/5
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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Transcribed Image Text:The joint distribution of X and Y is:
P.
x0'%3=D1/15, Pxy(0,1)=a, P(0,2)=2/15
X,Y
Pxy(1,0)=a, Px,y(1,1)=b, Px,y(1,2)=a
Pxy(2,0)=2/15, P(2,1)=a, Py(2,2)=1/15
X,Y
X,Y
X,Y
You want "a" to make the variance of Y as minimum as possible.
The variance of Y equals.
Select
one:
а. 2/5
b. 3/10
с. 1/2
d. 6/25
e. 3/5
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