Question: Suppose S = {1,2, 3}, and we try to define P by P({1,2, 3}) P({1,2}) = 0.7, P({1,3}) = 0.5, P({2,3}) = 0.7, P({1})

Suppose S = {1,2, 3}, and we try to define P by

Suppose S = {1,2, 3}, and we try to define P by P({1,2, 3}) P({1,2}) = 0.7, P({1,3}) = 0.5, P({2,3}) = 0.7, P({1}) = 0.2, P({2}) = 0.5, P({3}) = 0.3. Is Pa valid probability measure? Why or why not? 1, !!

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