Uses of standard deviation - measure of dispersion, Operation Research

Uses  of Standard Deviation

a.tandard  deviation  is used  widely in statistics unless there is some  definite reason  for not using it.

b.It is used  when  one needs  a measure  of greater stability.

c.Standard  deviation plays  a great  role  in sampling  theory correlation and  regression theory  etc.

d.Standard  deviation is regarded  as best  and  most  powerful  measure of dispersion as mean of  central tendency.




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