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I'm given that n=2 and a simple table showing this...

x 0 1 5 p(x) .25 .25 .5

I found the sample distribution for the sample mean to be this... _ x 0 .5 1 2.5 3 5 _ p(x) .0625 .125 .0625 .25 .25 .25

I also discovered that the mean is 2.75, but I'm lost on how to find the sample variance for these points...I'd appreciate any feedback or tips!

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