A and B are independent events in a probability experiment such t

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A and B are independent events in a probability experiment such that $$P_{(A)}$$=$$P_{(B)}$$ and $$P_{(A)}+P_{(B)}=1$$.

Quantity A: $$P_{(AorB)}$$

Quantity B: $$3P_{(AandB)}$$

A、Quantity A is greater.
B、Quantity B is greater.
C、The two quantities are equal.
D、The relationship cannot be determined from the information given.

答案：B

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这个题A是1，B是3/4，不应该选A吗？

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