Assertion (A): In any probability distribution, P(A) + P(A') = 1. Reason (R): A and A' are mutually exclusive and exhaustive events. Choose the correct option: MCQ with Answer and Explanation
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Question #1
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The de facto census method may overcount:
Correct Answer: Option A
Explanation:
De facto census counts people where found on census night, so tourists, migrant workers, or hospital patients may be counted away from their usual residence, potentially inflating counts in transient areas.
De facto census counts people where found on census night, so tourists, migrant workers, or hospital patients may be counted away from their usual residence, potentially inflating counts in transient areas.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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Demography is the statistical study of:
Correct Answer: Option B
Explanation:
Demography focuses on human populations, their size, structure, and changes.
Demography focuses on human populations, their size, structure, and changes.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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Consider the following statements about probability: 1. For any two events, P(A∪B) ≤ P(A) + P(B). 2. If A ⊆ B, then P(A) ≤ P(B). 3. For independent events, P(A|B) = P(A). Which of the above is/are correct?
Correct Answer: Option D
Explanation:
All are fundamental axioms/theorems of probability.
All are fundamental axioms/theorems of probability.
This question belongs to:
Accountancy and Statistics
Statistics
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