Let S be a set of outcomes and let A and B be events with outcomes in S. Let 〜B denote the set of all outcomes in S that are not in B and let P(A) denote the probability that event A occurs. What is the value of P(A) ?
1.P(AU B) = 0.7
2.P(AU 〜B) = 0.9
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AStatement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
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BStatement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
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CBOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
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DEACH statement ALONE is sufficient.
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EStatements (1) and (2)TOGETHER are NOT sufficient.
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正确答案: C