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The random variable X can the values 0, ...

The random variable `X` can the values 0, 1, 2, 3, Give P(X = 0) = P(X = 1)= p and P(X = 2) = P(X = 3) such that `sum p_i x_i^2=2sum p_i x_i` then find the value of `p`

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