Which of the following is a necessary condition for consistency of data for two attributes? MCQ with Answer and Explanation

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Which of the following is a necessary condition for consistency of data for two attributes?

A. (αβ) ≥ 0

B. (A) ≥ (AB)

C. (AB) ≥ 0

D. All of these

Answer: Option D

Solution (By JKSSB Mock Tests)

All ultimate class frequencies must be non-negative, and marginal conditions like (A) ≥ (AB) must hold.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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

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

B. A is true but R is false

C. A is false but R is true

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

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Correct Answer: Option A

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

Question #2

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Direct standardization of death rates uses:

A. Life table functions

B. Age-specific death rates of the given populations applied to a standard age distribution

C. Crude death rates only

D. Age-specific death rates of the standard population

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Correct Answer: Option B

Explanation:
Direct standardization applies the observed age-specific rates to a standard population distribution.

This question belongs to: Accountancy and Statistics Statistics

Question #3

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The primary advantage of secondary data is:

A. Tailored to research need

B. High accuracy

C. Saves time and money

D. Unique

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Correct Answer: Option C

Explanation:
Secondary data is already available, reducing time and cost of collection.

This question belongs to: Accountancy and Statistics Statistics

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