Consider the following pairs: (1) CBR - Per 1000 population, (2) GFR - Per 1000 women aged 15-49, (3) IMR - Per 1000 live births. Which pair is correctly matched?
Explanation:
Weighted harmonic mean = Σw / Σ(w/x), ideal for averaging rates or ratios (e.g., price per unit) when the weights correspond to the denominators (e.g., quantities), ensuring correct aggregation.
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