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You have a bag of 6 marbles with 3 green 3 red marbles. You pick 3...

You have a bag of 6 marbles with 3 green 3 red marbles. You pick 3 marbles at random. You define a Discrete Random Variable X such that it's value is the number of green marbles out of the 3 marbles you picked. P(x=0) = P(x=1) = P(x=2) = P(x=3) =

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