Multiple Choice Questions on Consider the following in respect of two events A and B 1 P A occurs but not B P A ndash P B if B nb........... for NDA Exam Preparation

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Multiple Choice Questions

Consider the following in respect of two events A and B 1 P A occurs but not B P A ndash P B if B nb...........

Mathematics (NDA) Set theory
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    Consider the following in respect of two events A and B:

    1. P(A occurs but not B) = P(A) – P(B) if B \subset A

    2. P(A alone or B alone occurs) = P(A) + P(B) – P(A \cap B)

    3. P ( A \cap B) = P(A) + P(B)  if A and B are mutually exclusive

    Which of the above is/are correct?

    1 only

    Incorrect Answer

    1 and 3 only

    Correct Answer

    2 and 3 only

    Incorrect Answer

    1 and 2 only

    Incorrect Answer
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