edjiejwi
edjiejwi
20.03.2021 • 
Mathematics

The sum of deviations of n observations about 25 is 25 and the sum of deviations of the same n observations about 35 is −25. The mean of observations.​


The sum of deviations of n observations about 25 is 25 and the sum of deviations of the same n obse

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