Which measure of central tendency is defined only when all observations are positive? MCQ with Answer and Explanation

Which measure of central tendency is defined only when all observations are positive?
A. Geometric mean (for meaningful result) and Harmonic mean (for positive numbers, but GM is undefined for negatives/zero)
B. Arithmetic mean
C. Mode
D. Median
Answer: Option A
Solution (By JKExamLibrary)
Geometric mean requires all positive values; otherwise it's undefined or zero. Harmonic mean also requires non-zero values, but GM is more restricted. Actually, GM is defined only for positive data if we want real numbers. So C.

This question belongs to: Accountancy and Statistics Statistics

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