Study the following table of population in a district and the average population served per doctor. Calculate the harmonic mean: AREA POPULATION SERVED PER DOCTOR POPULATION NUMBER OF DOCTORS RURAL 1000 50000 50 URBAN 500 50000 100 TOTAL 100000 150
Correct Answer: 667
Description: Calculation of harmonic mean is as follows: (50000+50000)/(50000/100+50000/50)=667 Ref : Medical biostatistics, 1st edition pg: 118
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