To find the average of proportions, ratios, and percentages, the most appropriate mathematical average is: MCQ with Answer and Explanation

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To find the average of proportions, ratios, and percentages, the most appropriate mathematical average is:

A. Harmonic Mean

B. Arithmetic Mean

C. Geometric Mean

D. Median

Answer: Option C

Solution (By JKSSB Mock Tests)

Geometric mean is mathematically the only correct average for analyzing multiplicative processes like ratios and percentages.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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TFR is considered a better measure of fertility than CBR because it:

A. Eliminates the effect of age structure

B. Uses total population

C. Is simpler

D. Includes male population

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Correct Answer: Option A

Explanation:
TFR is a synthetic measure that is independent of the population's age composition.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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The class midpoint is also known as:

A. Class mark

B. Class interval

C. Class frequency

D. Class limit

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Correct Answer: Option A

Explanation:
Class mark = (lower limit + upper limit)/2.

This question belongs to: Accountancy and Statistics Statistics

Question #3

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If the arithmetic mean of 7 numbers is 12, the sum of these numbers is:

A. 19

B. 84

C. 7

D. 12

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Correct Answer: Option B

Explanation:
Sum = mean × n = 12 × 7 = 84.

This question belongs to: Accountancy and Statistics Statistics

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