Introduction to merits and demerits of statistics:

Statistics means the methods used for gathering, organization, study and interpretation of statistical data. Statistics is also described as the science which deals with collection, analysis and interpretation of numerical information. Statistics consists of tests used to analyze information. In this article we will see the information about about merits and demerits of the statistics and solve basic statistics example problem.

Merits of Statistics:

Let us we will see the information about merits of the statistics.

Statistics contains lot of merits. These are,

Statistics helps in gives a well understanding and correct explanation of a phenomenon of nature.

Statistical helps in suitable and efficient planning of a statistical investigation in any field of study.

Statistical helps in assemble of appropriate quantitative data.

Statistics helps in presenting complex data in a fitting tabular, diagrammatic and graphic form for a simple and clear comprehension of the data.

Statistics is used to drawing valid inference; along with calculate of their consistency about the population parameters from the model data.

These are merits of the statistics.

Demerits of Statistics:

No we are going to see the information about demerits of statistics.

Statistics have some of the demerits. These are,

Statistics deals with combined and not with individuals.

Statistical data are accurate only on an average.

Statistical data collected for given reason cannot be useful to any situation.

It is not always possible to compare statistical data, unless they are equal in character.

These are demerits of the statistics.

Let us we will solve the basic statistics example problem.

Example 1:

30, 25,64,10,30.

Find Mean, mode, range and median for given numbers.

Mean:

The given numbers are,

30, 25,64,10,30.

='(30+25+64+10+35)/(5)’

=’159/5′

=31.8

Mode:

In statistics, the mode is described as most repeated values.

In this given values 30 is repeated.

So, the mode is 30.

Range:

The range is defined as difference among smallest value and maximum value.

The given numbers are,

30, 25,64,10,30.

In this given numbers highest value is 64.

Then smallest value is 10.

So the range is,

= 64 – 10

=54.

Median:

Median means center values.

The given values are 30, 25,64,10,30.

Now sort the numbers in ascending orders.

10, 25,30,30,64.

So, the x median value is 30.

These are merits and demerits of statistics.

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