Which index number formula satisfies both time reversal and factor reversal tests? MCQ with Answer and Explanation

Which index number formula satisfies both time reversal and factor reversal tests?
A. Simple aggregative index
B. Paasche index
C. Laspeyres index
D. Fisher's ideal index
Answer: Option D
Solution (By JKSSB Mock Tests)
Fisher's ideal index, being the geometric mean of Laspeyres and Paasche indices, is the only common formula that satisfies both time reversal and factor reversal tests, ensuring mathematical consistency.

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Statistics Questions

Question #1
The time reversal test checks whether an index number yields consistent results when:
A. Weights are changed
B. The formula is applied to different data
C. The base and current periods are reversed
D. Units are changed

Correct Answer: Option C


Explanation:
The product of the forward and backward indices should be 1.

This question belongs to: Accountancy and Statistics Statistics
Question #2
If Yule's Q = 0.8, it indicates:
A. Independence
B. Strong negative association
C. Strong positive association
D. Weak association

Correct Answer: Option C


Explanation:
Q close to +1 indicates strong positive association.

This question belongs to: Accountancy and Statistics Statistics
Question #3
Consumer Price Index (CPI) measures changes in:
A. Export prices
B. Wholesale prices
C. Industrial production
D. Retail prices of a fixed basket of goods and services

Correct Answer: Option D


Explanation:
CPI tracks the average change over time in the prices paid by consumers for a market basket of goods and services.

This question belongs to: Accountancy and Statistics Statistics