The primary purpose of the Consumer Price Index (CPI) is to measure: MCQ with Answer and Explanation
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Question #1
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A data set has a mean of 50 and a standard deviation of 5. If 3 is added to each value, the new coefficient of variation is:
Correct Answer: Option D
Explanation:
New mean = 53, SD unchanged=5. CV = (5/53)×100 ≈ 9.43%.
New mean = 53, SD unchanged=5. CV = (5/53)×100 ≈ 9.43%.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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The census method that counts people where they are found on census night is called:
Correct Answer: Option A
Explanation:
De facto census records individuals at their location on the census reference night, regardless of usual residence, useful for service planning but less suitable for administrative purposes.
De facto census records individuals at their location on the census reference night, regardless of usual residence, useful for service planning but less suitable for administrative purposes.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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If the median of 5, 7, 9, x, 11, 13 is 9.5, then x is:
Correct Answer: Option A
Explanation:
The six values in order: 5,7,9,x,11,13. Median = (9+x)/2 = 9.5 ⇒ x=10.
The six values in order: 5,7,9,x,11,13. Median = (9+x)/2 = 9.5 ⇒ x=10.
This question belongs to:
Accountancy and Statistics
Statistics
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