The mode is not unique when: MCQ with Answer and Explanation

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The mode is not unique when:

A. Two values appear with the same highest frequency

B. All values appear exactly once

C. Data are qualitative

D. Data are continuous

Answer: Option A

Solution (By JKSSB Mock Tests)

If two or more values share the maximum frequency, the distribution is multimodal.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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Which of the following is a direct source of demographic data in India?

A. Economic Survey

B. Annual Report of RBI

C. National Sample Survey (NSS)

D. Census of India

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Correct Answer: Option D

Explanation:
Census is the primary source of demographic data; NSS also provides demographic data but census is the most direct comprehensive source.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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In the schedule method, the advantage over mailed questionnaire is:

A. Complete anonymity

B. Faster data collection

C. Higher response rate and accuracy

D. Lower cost

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Correct Answer: Option C

Explanation:
Personal contact ensures better response and clarification.

This question belongs to: Accountancy and Statistics Statistics

Question #3

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Assertion (A): Median is better than Mean for skewed distributions. Reason (R): Median is entirely immune to extreme values.

A. A is true but R is false

B. Both A and R are true but R is NOT the correct explanation

C. A is false but R is true

D. Both A and R are true and R is the correct explanation

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Correct Answer: Option D

Explanation:
Median is a positional average based on rank, so an extreme outlier does not shift the median's location.

This question belongs to: Accountancy and Statistics Statistics

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