The addition theorem of probability for two events A and B states that P(A ∪ B) = P(A) + P(B) - P(A ∩ B). This formula accounts for: MCQ with Answer and Explanation
The addition theorem of probability for two events A and B states that P(A ∪ B) = P(A) + P(B) - P(A ∩ B). This formula accounts for:
A. The conditional probability of A given B
B. The independence of events
C. The double-counting of outcomes common to both A and B
D. The complement of event A
Answer: Option C
Solution (By JKSSB Mock Tests)
Subtracting P(A ∩ B) corrects for the fact that outcomes in the intersection are counted twice when adding P(A) and P(B), ensuring accurate probability calculation for the union.
Explanation:
Per WHO definition, perinatal mortality includes late fetal deaths (stillbirths) from 28 completed weeks of gestation and early neonatal deaths (first 7 days), capturing risks around birth.
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