An index number measures: MCQ with Answer and Explanation

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An index number measures:

A. Average only

B. Absolute change

C. Total value

D. Relative change over time or space

Answer: Option D

Solution (By JKSSB Mock Tests)

Index numbers measure relative changes in a variable compared to a base period.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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In attribute theory, the formula N = (A) + (α) represents:

A. Zero order consistency

B. Yule's coefficient

C. First order frequencies summing to the universe

D. Association criterion

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Correct Answer: Option C

Explanation:
The total population N is divided completely between those possessing the attribute (A) and those not possessing it (α).

This question belongs to: Accountancy and Statistics Statistics

Question #2

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Which data collection method has the lowest response rate generally?

A. Mailed questionnaire

B. Direct personal interview

C. Schedule through enumerator

D. Telephone interview

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Correct Answer: Option A

Explanation:
Mailed questionnaires suffer from high non-response as respondents often ignore or forget to return them.

This question belongs to: Accountancy and Statistics Statistics

Question #3

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In a Poisson distribution, mean = variance. If the mean is 4, the probability of exactly 2 occurrences is:

A. 0.3

B. 0.1

C. e^{-4} 4^2 / 2! ≈ 0.1465

D. 0.2

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Correct Answer: Option C

Explanation:
P(X=2) = e^{-4} × 16 / 2 = 8 e^{-4} ≈ 8×0.0183=0.1465.

This question belongs to: Accountancy and Statistics Statistics

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