Maurice Tutor

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Category > Management Posted 20 Nov 2017 My Price 3.00

density function

44.    Let Xi denote the percentage of votes cast in a given election that are for candidate

i, and suppose that X1  and X2  have a joint density function

r 3(x + y),      if x ≥ 0, y ≥ 0, 0 ≤ x + y ≤ 1

 

fX1,X2 (x, y) =

 

0,               if  otherwise

 

 

(a)      Find the marginal densities of X1  and X2.

(b)      Find E [Xi ] and Var(Xi) for i = 1, 2.

Answers

Maurice Tutor
(5)
Status NEW Posted 20 Nov 2017 09:11 PM My Price 3.00

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