If the mode is 24 and median is 25, the approximate arithmetic mean using empirical relation is: MCQ with Answer and Explanation

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If the mode is 24 and median is 25, the approximate arithmetic mean using empirical relation is:

A. 26

B. 25.5

C. 24.5

D. 27

Answer: Option B

Solution (By JKSSB Mock Tests)

Mode = 3Median - 2Mean → 24 = 3×25 - 2Mean → 2Mean = 75 - 24 = 51 → Mean = 25.5.

This question belongs to: Accountancy and Statistics Statistics

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Vital statistics are used for:

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B. All of the above

C. Estimating population growth

D. Actuarial calculations

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Correct Answer: Option B

Explanation:
Vital statistics inform public health planning, demographic estimates, and insurance mathematics.

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The total fertility rate is 3.0. If the proportion of female births is 0.49 and the survival rate of women to reproductive age is 0.9, the NRR is approximately:

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Correct Answer: Option D

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This question belongs to: Accountancy and Statistics Statistics

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The Laspeyres index is said to have an upward bias because it:

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Correct Answer: Option C

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