method of finding A.M. of a discrete series ?
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Discrete series means where frequencies of a variable are given but the variable is without class intervals.
Here the mean can be found by Three Methods.
(i) Direct Method:
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Here each frequency is multiplied by the variable, taking the total and dividing total by total number of frequencies, we get X.
Symbolically,
X = ∑fx/N
Where f = frequency,
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X = the value of the variable
And N = the sum of frequency or N = ∑f
Here the mean can be found by Three Methods.
(i) Direct Method:
ADVERTISEMENTS:
Here each frequency is multiplied by the variable, taking the total and dividing total by total number of frequencies, we get X.
Symbolically,
X = ∑fx/N
Where f = frequency,
ADVERTISEMENTS:
X = the value of the variable
And N = the sum of frequency or N = ∑f
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