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Class 10 > Learn Mathematics > What is the formula for arithmetic mean for unclassified...
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What is the formula for arithmetic mean for unclassified data?

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Arithmetic mean of unclassified data x1, x2, x3, x4, ... xn = X X= x1+ x2 + x3 + x4+ ... + xn —--—--——--—--—--——--—--— . n
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Tutor.

mean = sum of all observation / no.of observation mean = SUM ( Xi*Fi) /SUM( FI).
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mean = sum of all observation / no.of observation mean = SUM ( Xi*Fi) /SUM( FI).
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STEM(Science,Technology, Engineering,Mathematics)

Let x1,x2,..,xn be the unclassified data you have then AM=(x1+x2+...+xn)/n.
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Arithmetic mean= Sum of observations / Total number of observations.
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Arithmetic mean for Unclassified data is n/2 (a+summation of (fd' / summation of f) x h. Where, d'= (x-a)/h summation of(F) = N = Total frequency.
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Add all the observations and divide it by no of obserbations. It is the average of all observations.
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All Round Personality Developer

Sum of elements/entries divided by number of elements or entries.
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There are two methods for calculating arithmetic mean for unclassified data: 1) Direct Method Arithmetic Mean = sum of all the observations/ total number of observations 2) Indirect Method Here we take an arbitrary assumed mean and we find out the deviations (differences) of the assumed mean from the...
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There are two methods for calculating arithmetic mean for unclassified data: 1) Direct Method Arithmetic Mean = sum of all the observations/ total number of observations 2) Indirect Method Here we take an arbitrary assumed mean and we find out the deviations (differences) of the assumed mean from the individual values . We use the formula: Arithmetic mean = Assumed mean + (Sum of all the deviations/ number of observations) read less
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Mean=(Sum of observations) / (Total no of observations) Let us suppose that total "n" numbers given in unclassified data are x1,x2,.....,xn. The mean of these observations will be given by ¯x =( x1+x2+...+xn) / n
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