In attributes, if (A)=70, (B)=50, (αβ)=10, and N=100, then (AB) is: MCQ with Answer and Explanation

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In attributes, if (A)=70, (B)=50, (αβ)=10, and N=100, then (AB) is:

A. 40

B. 20

C. 30

D. 10

Answer: Option C

Solution (By JKSSB Mock Tests)

(αβ)= N - (A) - (B) + (AB) ⇒ 10 = 100 -70 -50 + (AB) ⇒ (AB)=30.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

Which of the following statements about maternal mortality ratio (MMR) is incorrect?

A. MMR is a measure of fertility.

B. MMR is the number of maternal deaths per 100,000 live births.

C. MMR has declined in India over recent decades.

D. High MMR indicates poor maternal healthcare.

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Correct Answer: Option A

Explanation:
MMR is a mortality indicator, not a fertility measure.

This question belongs to: Accountancy and Statistics Statistics

Question #2

Infant Mortality Rate (IMR) is calculated as:

A. Deaths under 5 years / Live births × 1,000

B. Maternal deaths / Live births × 100,000

C. Deaths under 1 year / Total births × 1,000

D. Deaths under 1 year / Mid-year population under 1 × 1,000

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Correct Answer: Option C

Explanation:
IMR = (Number of infant deaths (under 1 year) in a year / Number of live births in the same year) × 1,000. It is a sensitive indicator of healthcare quality and socioeconomic conditions.

This question belongs to: Accountancy and Statistics Statistics

Question #3

The Crude Birth Rate (CBR) is defined as the number of live births per:

A. 1,000 women in the childbearing age

B. 100,000 mid-year population

C. 1,000 mid-year population

D. 100 women in the childbearing age

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Correct Answer: Option C

Explanation:
CBR is the simplest measure of fertility, calculated as (Total Live Births / Mid-year Population) × 1000.

This question belongs to: Accountancy and Statistics Statistics

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