Math, asked by lylas, 1 year ago

the mean of the following distribution is 50. Find the value of the frequencies of 30 and 70 , observation are : x,10,30,50,70,90,f,17,5a+3,32,7a-11,19​


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Answers

Answered by aryanshind
2

But which method direct ,assumed or Step diveation


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