If P(A)=0.4, P(B)=0.5 and P(A∪B)=0.7, then P(A|B) is:
If P(A)=0.4, P(B)=0.5 and P(A∪B)=0.7, then P(A|B) is:
- A. 0.4
- B. 0.5
- C. 0.6
- D. 0.7
Answer: A) 0.4
Explanation: P(A∩B)=0.4+0.5−0.7=0.2. Then 0.2/0.5=0.4.
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