write different formula to find mean by various methods
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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
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
ishuvyshu045:
please tell me
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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
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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