For two events, P(A)=0.4, P(B)=0.3, and P(A∩B)=0.12. Which of the following is true?
A. P(A∪B)=0.52.
B. A and B are independent.
C. A and B are complementary.
D. A and B are mutually exclusive.
Answer: Option B
Solution (By JKExamLibrary)
0.4×0.3=0.12, so independent. Mutually exclusive would need 0. P(A∪B)=0.4+0.3-0.12=0.58.
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