Calculate harmonic mean for the given data

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Calculate harmonic mean for the following data. Size of items 50-60 60-70 70-80 80-90 90-100 No of items 12 15 22 18 20

Reference no: EM131383797

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Calculate harmonic mean for the given data : Calculate harmonic mean for the following data. Size of items 50-60 60-70 70-80 80-90 90-100 No of items 12 15 22 18 20
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