Using a sample space and Venn diagrams, show that: (a) Pr{A U B} = Pr{A} + Pr{B} – Pr{AOB} (b) Pr{A UBUC} = Pr{A} + Pr{B} + Pr{C} – Pr{AB} – Pr{B nC}- Pr{A O C} + Pr{A o BOC) %3D

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