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An unfair coin lands heads with probability 1/3. Suppose X =1 if the coin lands heads and X = 0 %3D if the coin

An unfair coin lands heads with probability 1/3. Suppose X =1 if the coin lands heads and X = 0 %3D if the coin lands tails. Calculate Var(X4 + X3 +X + X + 1).

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