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? MCQ with Answer and Explanation

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?
A. 1 and 3 only
B. 1 and 2 only
C. 1, 2 and 3
D. 2 and 3 only
Answer: Option C
Solution (By JKSSB Mock Tests)
All are fundamental axioms/theorems of probability.

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The sex ratio in India (Census 2011) is defined as:
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B. Number of males per 1000 females
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Correct Answer: Option D


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Schedules filled by enumerators is a primary data collection method; the others are secondary sources.

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