In a random experiment, an event consisting of a single outcome is called: MCQ with Answer and Explanation

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In a random experiment, an event consisting of a single outcome is called:

A. Sure event

B. Compound event

C. Simple event

D. Null event

Answer: Option C

Solution (By JKSSB Mock Tests)

An elementary or simple event contains exactly one sample point.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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For two attributes A and B, if (A)=80, (B)=70, N=100, and they are independent, then (AB) should be:

A. 50

B. 70

C. 80

D. 56

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Correct Answer: Option D

Explanation:
Expected (AB) = (80×70)/100 = 56.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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Total Fertility Rate (TFR) is a period measure that assumes:

A. Mortality rates remain constant

B. All women marry at the same age

C. Women will experience current age-specific fertility rates throughout their lives

D. Migration is zero

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Correct Answer: Option C

Explanation:
TFR sums current ASFRs to estimate completed fertility for a hypothetical cohort, assuming no future changes in age-specific fertility behavior, making it a snapshot of current fertility intensity.

This question belongs to: Accountancy and Statistics Statistics

Question #3

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A population pyramid with a narrow base and wide top indicates:

A. High birth rate, high death rate

B. High fertility, low mortality

C. High infant mortality

D. Low birth rate, low death rate, aging population

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Correct Answer: Option D

Explanation:
Narrow base means fewer young people; wide top means many elderly, typical of developed countries.

This question belongs to: Accountancy and Statistics Statistics

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