- #1
electronic engineer
- 145
- 3
Hello,
we have the following example:
Assume that (y1,y2) are discrete valued and follow such a distribution that the pair are with probability 1/4 equal to any of the following cases: (0,1),(0,-1),(1,0),(-1,0) .
E{y1^2*y2^2}=0
E{y1^2}*E{y2^2}=1/4
I don't understand how the expectations were derived . Could anyone help?
Thanks in advanced!
we have the following example:
Assume that (y1,y2) are discrete valued and follow such a distribution that the pair are with probability 1/4 equal to any of the following cases: (0,1),(0,-1),(1,0),(-1,0) .
E{y1^2*y2^2}=0
E{y1^2}*E{y2^2}=1/4
I don't understand how the expectations were derived . Could anyone help?
Thanks in advanced!
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