Which of the following is a disadvantage of secondary data? MCQ with Answer and Explanation
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Question #1
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Population density is defined as:
Correct Answer: Option C
Explanation:
Population density is commonly expressed as the number of persons per unit area, usually per sq. km.
Population density is commonly expressed as the number of persons per unit area, usually per sq. km.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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Conditional probability P(B|A) is defined as P(A ∩ B) / P(A) provided that:
Correct Answer: Option C
Explanation:
The definition of conditional probability requires P(A) > 0 to avoid division by zero; if P(A)=0, P(B|A) is undefined.
The definition of conditional probability requires P(A) > 0 to avoid division by zero; if P(A)=0, P(B|A) is undefined.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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If (AB) = 0, the two attributes are:
Correct Answer: Option C
Explanation:
(AB)=0 means no unit possesses both A and B, indicating perfect negative association.
(AB)=0 means no unit possesses both A and B, indicating perfect negative association.
This question belongs to:
Accountancy and Statistics
Statistics
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