Let X and Y be two discrete random variables with the joint probability distribution is given by: f(x,y) 0 1/6 1/3 2 1/12 0 X= 1 Then E([(X + 2Y)2]) is equal to: O 281/12 O 57/6 O None of these O 147/12 1 0 1/6 1/12 Y= 2 0 0 1/6

Let X and Y be two discrete random variables with the joint probability distribution is given by: f(x,y) 0 1/6 1/3 2 1/12 0 X= 1 Then E([(X + 2Y)2]) is equal to: O 281/12 O 57/6 O None of these O 147/12 1 0 1/6 1/12 Y= 2 0 0 1/6

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter13: Probability And Calculus

Section13.CR: Chapter 13 Review

Problem 41CR

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Question

100%

Let X and Y be two discrete random variables with the joint probability distribution is given
by:
f(x,y)
0
1/6
1/3
2 1/12
0
X= 1
Then E([(X + 2Y)2]) is equal to:
O 281/12
O 57/6
O None of these
O 147/12
1
0
1/6
1/12
Y=
2
0
0
1/6

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