Question

(3) Write merits and demerits of ideal measure of Dispersion.​

Answer 1

Answer:

Merits

•They indicate the dispersal character of a statistical series.

•They speak of the reliability, or dependability of the average value of a series.

•They enable the statisticians for making a comparison between two or more statistical series with regard to the character of their stability or consistency.

•They facilitate in controlling the variability of a phenomenon under his purview.

Demerits

•They are liable to misinterpretations, and wrong generalizations by a statistician of based character.

•They are liable to yield inappropriate results as there are different methods of calculating the dispersions.

•Exception on or two, of the methods of dispersion involve complicated process of computation.

•They may give a value of variation, which may not be practically found with the items of the series.

Answer 2

Answer:

Merits of Range : - 

- Simple and easy to be computed.

- It takes minimum time to calculate. 

- Helpful in quality control of products.

Demerits of Range :

-  Not based on all the items. 

- Subject to fluctuation/uncertain measure.

- Cannot be computed in case of open-end distributions. 

- As it is not based on all the values it is not considered as a good or appropriate measure. 

Step-by-step explanation:

Hope this will help you ...

Thank you ...