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Batch A has mean 40 and SD 8. Batch B has mean 25 and SD 4. Which batch is more consistent?

ABoth equally
BBatch B, CV 16%
CBatch A, CV 20%
DCannot be told
Answer & Solution
Correct answer: B. Batch B, CV 16%
CV of A is 8/40 = 20% and CV of B is 4/25 = 16%, and the lower CV means more consistency.
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