How many types of Series are there on the basis of Quantitative Classification? Give the difference between Exclusive and Inclusive Series.
.: There are three types of frequency distributions -
- Individual Series : In individual series, the frequency of each item or value is only one for example ;marks scored by 10 students of a class are written
- Discrete Series : A discrete series is that in which the individual values are different from each other by a different
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For example: Daily wages |
5 |
10 |
15 |
20 |
|
No. of workers |
6 |
9 |
8 |
5 |
- Continuous Series : When the number of items are placed within the limits of the class, the series obtained by classification of such data is known as continuous
For example Marks obtained 0-10 10-20 20-30 30-40
No.of students 10 18 22 25
Difference between Exclusive and Inclusive Series
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Exclusive Series |
Inclusive Series |
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Limits |
Upper limit of one class is equal to the lower limit of next class. |
The two limits are not equal. |
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Inclusion |
The value equal to the upper limit is included in the next class. |
Both upper & lower limits are included in the same class. |
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Conversion |
It does not require any conversion. |
Inclusive series is converted into exclusive series for calculation purpose. |
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Suitability |
It is suitable in all situations. |
It is suitable only when the values are in integers. |
