The geometric mean is undefined for datasets containing: MCQ with Answer and Explanation

The geometric mean is undefined for datasets containing:
A. Values greater than 100
B. Non-integer values
C. Zero or negative values
D. More than 10 observations
Answer: Option C
Solution (By JKSSB Mock Tests)
Geometric mean involves multiplying values and taking the nth root; zero makes the product zero, and negative values can yield complex roots, so it is only defined for positive numbers.

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Practice More Statistics Questions

Question #1
If P(A)=0.3, P(B)=0.5, and P(A∩B)=0.15, then A and B are:
A. Both mutually exclusive and independent
B. Independent
C. Dependent
D. Mutually exclusive

Correct Answer: Option B


Explanation:
P(A)P(B) = 0.3×0.5 = 0.15 = P(A∩B), satisfying the condition for independence.

This question belongs to: Accountancy and Statistics Statistics
Question #2
Factor reversal test requires that the product of a price index and its corresponding quantity index equals:
A. 1
B. Base year value
C. Current year value
D. Value index

Correct Answer: Option D


Explanation:
The product should equal the value ratio Σp₁q₁/Σp₀q₀, i.e., the value index.

This question belongs to: Accountancy and Statistics Statistics
Question #3
The process of arranging raw data into a table is:
A. Editing
B. Coding
C. Classification
D. Tabulation

Correct Answer: Option D


Explanation:
Tabulation is the systematic presentation of data in rows and columns.

This question belongs to: Accountancy and Statistics Statistics