The Fisher index is the geometric mean of Laspeyres and Paasche. This ensures it satisfies: MCQ with Answer and Explanation

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The Fisher index is the geometric mean of Laspeyres and Paasche. This ensures it satisfies:

A. None of the tests

B. Only time reversal test

C. Both tests

D. Only factor reversal test

Answer: Option C

Solution (By JKSSB Mock Tests)

Fisher is designed to meet both tests.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

Conditional probability P(A|B) is defined only when:

A. P(A) > 0

B. A and B are independent

C. P(B) > 0

D. A and B are mutually exclusive

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Correct Answer: Option C

Explanation:
The definition P(A|B) = P(A∩B)/P(B) requires P(B) > 0.

This question belongs to: Accountancy and Statistics Statistics

Question #2

Vital statistics are crucial for calculating which of the following indicators?

A. Gross Domestic Product (GDP)

B. Human Development Index (HDI)

C. Literacy Rate

D. Infant Mortality Rate (IMR)

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Correct Answer: Option D

Explanation:
IMR directly uses vital statistics data on live births and infant deaths; other options rely on broader datasets (e.g., GDP on economic surveys, HDI on multiple sources, literacy on census/surveys).

This question belongs to: Accountancy and Statistics Statistics

Question #3

Sturges' rule for the number of classes k is:

A. k = 1 + 3.322 log₁₀ N

B. k = 3.322 log₁₀ N

C. k = log₁₀ N

D. k = 1 + 2.322 log₁₀ N

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Correct Answer: Option A

Explanation:
The formula k = 1 + 3.322 log₁₀ N gives an approximate optimal number of classes.

This question belongs to: Accountancy and Statistics Statistics

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