The sum of squares of deviations from the mean is: MCQ with Answer and Explanation

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The sum of squares of deviations from the mean is:

A. Zero

B. Equal to the variance

C. Maximum

D. Minimum

Answer: Option D

Solution (By JKSSB Mock Tests)

The sum of squared deviations from the mean is minimum; from any other point it would be larger.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

The Net Reproduction Rate (NRR) of a population is 0.9. This indicates that:

A. Mortality is zero

B. Population growth is high

C. Population is replacing itself

D. Population will eventually decline

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Correct Answer: Option D

Explanation:
NRR < 1 means each generation is not fully replacing itself, leading to long-term decline.

This question belongs to: Accountancy and Statistics Statistics

Question #2

Which of the following is a cause of decline in India's infant mortality rate?

A. Higher fertility

B. Decrease in female literacy

C. Increase in poverty

D. Improved immunization and healthcare facilities

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Correct Answer: Option D

Explanation:
Better health services, immunization, and sanitation reduce infant deaths.

This question belongs to: Accountancy and Statistics Statistics

Question #3

Which fertility measure accounts for the age structure of the female population in the reproductive age group?

A. General Fertility Rate

B. Gross Reproduction Rate

C. Age Specific Fertility Rate

D. Crude Birth Rate

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Correct Answer: Option C

Explanation:
Age Specific Fertility Rate (ASFR) calculates fertility for specific age groups of women, removing the bias of age structure.

This question belongs to: Accountancy and Statistics Statistics

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