Math, asked by ishuvyshu045, 1 year ago

write different formula to find mean by various methods

Answers

Answered by poojan
10
there are 3 formulas
mean = sigma fixi/sigma fi  i.e., sum of the observations/ no.of observations
mean =a+ sigma fidi/sigma fi  
mean = a+(sigma fiui/sigmafi)×h

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Answered by kanugula
8
direct mean 
sigma fx/sigma f
step deviation method
assumed mean+(sigma fd/sigma f)
where d is deviation
u+(sigma fu/sigma f) h
assumed mean method
where u is height of the class
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