Mathematics · Probability
If A and B are mutually exclusive events and P(A ∪ B) ≠ 0, then the conditional probability P(A / (A ∪ B)) equals:
- 1P(A)P(A) + P(B)✓
- 2P(B)P(A) + P(B)
- 3P(A)P(A) - P(B)
- 4P(B)P(A) - P(B)
Correct answer
P(A)P(A) + P(B)
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