The geometric mean of 4, 9, and 16 is: MCQ with Answer and Explanation

Question Report Error

The geometric mean of 4, 9, and 16 is:

A. 8

B. 9

C. 10

D. 12

Answer: Option A

Solution (By JKExamLibrary)

Geometric mean = (4 × 9 × 16)^(1/3) = (576)^(1/3) = 8. It is the nth root of the product of n observations, useful for averaging ratios or growth rates.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1 Report Error

The arithmetic mean of a data set is not a good representative if:

A. Data are symmetric

B. Data have extreme outliers

C. Data are normally distributed

D. Data are large

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Correct Answer: Option B

Explanation:
Outliers distort the mean; median is preferred in such cases.

This question belongs to: Accountancy and Statistics Statistics

Question #2 Report Error

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

A. Is simpler

B. Uses total population

C. Eliminates the effect of age structure

D. Includes male population

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Correct Answer: Option C

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

This question belongs to: Accountancy and Statistics Statistics

Question #3 Report Error

In attributes, if (AB)=30, (A)=40, (B)=50, N=100, the expected frequency under independence is:

A. 15

B. 20

C. 25

D. 30

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Correct Answer: Option B

Explanation:
Expected (AB) = (40×50)/100 = 20.

This question belongs to: Accountancy and Statistics Statistics

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