Write advantages and disadvantages of the standard deviation. - Vidyadip

Question

Write advantages and disadvantages of the standard deviation.

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Answer

Advantages of Standard Deviation :

Its definition its clear and precise.
All observations of the data are used in its computation.
It is a more efficient measure of dispersion among the other measures of dispersion.
If Mean and Standard deviations are given for two data sets, combined Standard deviation of new data set can be obtained. Thus, it is a suitable measure for other algebraic manipulations.
it is widely used as basic measure in higher study of Statistics.

Disadvantages of Standard Deviation:

Its computation is difficult as compared other measures of dispersion.
Extreme observations enjoy more weightage in its computations.
It is not easy to understand for a common man.
It cannot be obtained for the open – ended frequency distribution.

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