In an examination, 60% candidates passed in English (A), 50% in Math (B), and 30% in both (AB). Are attributes A and B independent? MCQ with Answer and Explanation
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Question #1
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Perinatal mortality rate per 1000 total births is 35. If there were 700 late fetal deaths and early neonatal deaths combined, the number of total births (live births + stillbirths) is:
Correct Answer: Option C
Explanation:
Rate = (perinatal deaths / total births) × 1000 => 35 = 700 / total births × 1000 => total births = 700,000/35 = 20,000.
Rate = (perinatal deaths / total births) × 1000 => 35 = 700 / total births × 1000 => total births = 700,000/35 = 20,000.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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The de facto census method may overcount:
Correct Answer: Option B
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 #3
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Which of the following index numbers suffers from upward bias?
Correct Answer: Option C
Explanation:
Laspeyres uses base-year quantities, ignoring the substitution effect when prices rise, causing an upward bias in inflation estimates.
Laspeyres uses base-year quantities, ignoring the substitution effect when prices rise, causing an upward bias in inflation estimates.
This question belongs to:
Accountancy and Statistics
Statistics
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