For two standard dice all 36 outcomes of a throw are equally likely. Find P(X1 + X2 = j) for all j and calculate E(X1 +X2). Confirm that E(X1)+E(X2) = E(X1 +X2).
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For two standard dice all 36 outcomes of a throw are equally likely. Find P(X1 + X2 = j) for all j and calculate E(X1 +X2). Confirm that E(X1)+E(X2) = E(X1 +X2).
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