Assertion (A): For independent events A and B, P(A|B) = P(A). Reason (R): Independence implies that knowledge of B does not change the probability of A. MCQ with Answer and Explanation
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Question #1
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If index number for year 2020 (Base 2010) is 150, it means:
Correct Answer: Option A
Explanation:
An index of 150 implies current prices are 150% of the base year (which is 100), meaning a net increase of 50%.
An index of 150 implies current prices are 150% of the base year (which is 100), meaning a net increase of 50%.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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If TFR = 2.5 and proportion of female births is 0.48, GRR is:
Correct Answer: Option C
Explanation:
GRR = 2.5 × 0.48 = 1.2 daughters per woman.
GRR = 2.5 × 0.48 = 1.2 daughters per woman.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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In attribute theory, consistency of data requires that all ultimate class frequencies are:
Correct Answer: Option D
Explanation:
Consistency checks ensure no calculated frequency (e.g., from marginal totals) is negative, as counts cannot be negative; all must be non-negative integers for logical validity.
Consistency checks ensure no calculated frequency (e.g., from marginal totals) is negative, as counts cannot be negative; all must be non-negative integers for logical validity.
This question belongs to:
Accountancy and Statistics
Statistics
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