If a constant is subtracted from all observations, the arithmetic mean: MCQ with Answer and Explanation
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Question #1
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The theory of attributes deals with data that is:
Correct Answer: Option C
Explanation:
Theory of attributes focuses on qualitative characteristics (attributes) that classify units into categories, such as literacy (literate/illiterate) or gender (male/female), rather than numerical measurements.
Theory of attributes focuses on qualitative characteristics (attributes) that classify units into categories, such as literacy (literate/illiterate) or gender (male/female), rather than numerical measurements.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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If there were 5000 live births in a year and the number of women aged 15-49 was 25,000, the GFR per 1000 women is:
Correct Answer: Option A
Explanation:
GFR = (5000 / 25000) × 1000 = 0.2 × 1000 = 200 per 1000 women.
GFR = (5000 / 25000) × 1000 = 0.2 × 1000 = 200 per 1000 women.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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Two independent events A and B have probabilities 0.4 and 0.5. The probability that exactly one of them occurs is:
Correct Answer: Option C
Explanation:
P(Exactly one) = P(A) + P(B) - 2*P(A ∩ B) = 0.4 + 0.5 - 2*(0.4*0.5) = 0.9 - 0.4 = 0.5.
P(Exactly one) = P(A) + P(B) - 2*P(A ∩ B) = 0.4 + 0.5 - 2*(0.4*0.5) = 0.9 - 0.4 = 0.5.
This question belongs to:
Accountancy and Statistics
Statistics
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