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Demerits of Range
a.It gives importance to the two extreme values and is very much affected by the extreme items.
b.The range provides no information about the structure of the series.
c.Range is influenced very much by fluctuations of sampling.
d.Due to the above demerits disadvantages range is not a reliable measure of dispersion.
sOLVE THE FOLLOWING D1 D2 D3 SUPPLY s1 2 2 3 10 s2 4 1 2 15 s3 1 3 1 40 Demand 20 15 30
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