Let x̄₁ and x̄₂ (where x̄₂ > x̄₁) be the means of two sets comprising n₁ and n₂ (where n₂ < n₁) observations respectively. If x̄ is the mean when they are pooled, then which one of the following is correct?
Mathematics
2018
CDS Elementary Mathematics 2018
CDS 2018
Options
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