The combined mean of two groups depends on: MCQ with Answer and Explanation

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The combined mean of two groups depends on:

A. The individual means and the group sizes

B. The group sizes only

C. The individual means only

D. The medians

Answer: Option A

Solution (By JKSSB Mock Tests)

Combined mean = (n₁x̄₁ + n₂x̄₂) / (n₁ + n₂).

This question belongs to: Accountancy and Statistics Statistics

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The most populous state of India as per 2011 Census is:

A. Maharashtra

B. Uttar Pradesh

C. Bihar

D. West Bengal

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Correct Answer: Option B

Explanation:
Uttar Pradesh had the largest population in 2011.

This question belongs to: Accountancy and Statistics Statistics

Question #2

Perinatal Mortality Rate combines:

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Correct Answer: Option B

Explanation:
Perinatal mortality, as defined by WHO, includes stillbirths from 28 weeks gestation and deaths in the first week of life, capturing risks around the time of birth for comprehensive assessment.

This question belongs to: Accountancy and Statistics Statistics

Question #3

The horizontal axis of a histogram represents:

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B. Class marks

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Correct Answer: Option A

Explanation:
In a histogram, the x-axis shows the continuous class boundaries (or limits).

This question belongs to: Accountancy and Statistics Statistics

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