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प्रश्न
The weight of the seven members of a family, in kilograms are given below:
20, 52, 56, 72, 64, 13, 80.
Find mean weight.
उत्तर
Mean = `(sumx)/"N"`
Mean
= `(20 + 52 + 56 + 72 + 64 + 13 + 80)/(7)`
= `(351)/(7)`
= 51kg.
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