For a set of positive observations, when is the arithmetic mean equal to the geometric mean?
Correct answer: A. When all observations are equal
- A. When all observations are equal
- B. When all observations are distinct
- C. When the median is zero
- D. When the range is maximum
Explanation
The arithmetic mean equals the geometric mean when every positive observation has the same value. Equality does not require the observations to be distinct or the range to be large.
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