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Part ACSIR NET December 2025geometric-mean-scales-linearly-not-by-a-square-root

Geometric mean scales linearly not by a square root

The geometric mean of 100 observations is 25. If each observation is multiplied by 4, what will be the new geometric mean?

  1. A.100✓
  2. B.50
  3. C.25
  4. D.(25×4)^(1/2)

You have the answer. Trap Analysis is why the other three were written.

Not a worked solution repeated four times — the specific reasoning error each wrong option was built to reward.

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