If the price index for 2020 with base 2015 is 125, and for 2025 with base 2020 is 120, the index for 2025 with base 2015 using chain method is: MCQ with Answer and Explanation

If the price index for 2020 with base 2015 is 125, and for 2025 with base 2020 is 120, the index for 2025 with base 2015 using chain method is:

A. 140

B. 145

C. 125 × 1.2 = 150

D. 150

Answer: Option C

Chain index = 125 × (120/100) = 125 × 1.2 = 150.

This question belongs to: Accountancy and Statistics Statistics

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Question #1 Report Error

In demography, 'cohort' refers to:

A. All women of reproductive age

B. A sample of the population

C. A group of people born in the same year or period

D. All people living in a country

Correct Answer: Option C

Explanation:
A cohort is a group sharing a common temporal experience, like birth year.

This question belongs to: Accountancy and Statistics Statistics

Question #2 Report Error

The Wholesale Price Index (WPI) base year 2011-12 includes:

A. Only food articles

B. Consumer durables only

C. Goods only, grouped into primary, fuel, and manufactured products

D. Services

Correct Answer: Option C

Explanation:
WPI basket comprises goods under three major groups: Primary Articles, Fuel & Power, Manufactured Products.

This question belongs to: Accountancy and Statistics Statistics

Question #3 Report Error

Which of the following is NOT a source of primary data?

A. Interviews conducted by the researcher

B. A questionnaire filled by the respondent online

C. Census of India 2011 data used by a demographer

D. An experiment conducted in a lab

Correct Answer: Option C

Explanation:
Census data is already published; it is secondary data for a demographer.

This question belongs to: Accountancy and Statistics Statistics