FIE A. Show that each of the following is a probability mass function 1 * if xE{1, 2} 1. P(X=x)3D3 0, otherwise. 2. P(X=x)=D55 , if x € {1, 2, 3, 4, 5} 0, otherwise. 1 3. P(X=x)3D: if x €{1, 2, 3, 4, 5, 6} [ 0, otherwise.

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