In maths, is the expected value of the expected value equal to the expected value? E(E(X))=E(X)?

E(k) = k if k is a constant, so I suppose that if E(X) is a constant (I am not sure if you consider it a constant or not) then E(E(X)) = E(X) potentia

E(k) = k if k is a constant, so I suppose that if E(X) is a constant (I am not sure if you consider it a constant or not) then E(E(X)) = E(X) potentially.

or:E(k) = k if k is a constant, so I suppose that if E(X) is a constant (I am not sure if you consider it a constant or not) then E(E(X)) = E(X) potentially.

or:For your equation to be true, it is only possible if E is equal to 1

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