1.

there are 50boys in 8th class with average weight of 60kg and 70 girls with 45kg of average weight calculate combined mean of all the students​

Answer»

tion:MEAN = sum of observations/ total no of observationsMean = 3000 + 3150 / 120Mean = 6150 / 120Mean = 51.25This is the answer.Please MARK me Brainliest



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