The joint distribution of X and Y is: Pxy(0,0)=1/10, Px,y(0,1)=a, Px,y(0,2)=2/10 Pxy(1,0)=a, Px,y(1,1)=b, Px,y(1,2)=a Pxy(2,0)=2/10, Px,y(2,1)=a, Px,y(2,2)=1/10 You want "a" to make the variance of Y as minimum as possible. The variance of Y equals. Select one: О а. 1/2 о b. 3/10 c. 2/5 d. 6/25 е. 3/5

The joint distribution of X and Y is: Pxy(0,0)=1/10, Px,y(0,1)=a, Px,y(0,2)=2/10 Pxy(1,0)=a, Px,y(1,1)=b, Px,y(1,2)=a Pxy(2,0)=2/10, Px,y(2,1)=a, Px,y(2,2)=1/10 You want "a" to make the variance of Y as minimum as possible. The variance of Y equals. Select one: О а. 1/2 о b. 3/10 c. 2/5 d. 6/25 е. 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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Question

The joint distribution of X and Y is:
Px,y(0,0)=1/10, Px,y(0,1)=a, Px,y(0,2)=2/10
Рxx(1,0)-а, Рҳ/(1,1)-b, Рҳ/(1,2)-а
Pxy(2,0)=2/10, Pxy(2,1)=a, Px,y(2,2)=1/10
You want "a" to make the variance of Y as minimum as possible.
The variance of Y equals.
Select one:
а. 1/2
b. 3/10
C. 2/5
d. 6/25
е. 3/5

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