Grouped Frequency:
Before we get into the details of what is grouped frequency,let us first learn about the meaning of frequency.
What is the meaning of Frequency??
A frequency distribution is a tabular collection of data showing the frequency of each observation.
Frequency distributions are two types:
* Discrete frequency distribution
* Grouped frequency distribution
Grouped Frequency:
The grouped frequency table is the frequency data value that occur the number of times in the frequency table. It is the particular value that occur number of times in the grouped frequency table.
For example if five students have scored 90 marks in mathematics in a test
Then the mark scored 90 is the frequency of 5 members. Here f can be represented as frequency of grouped frequency table.
The frequency table can be constructed by arranging collected data value. The frequency tables are arranged in ascending order by magnitude with their corresponding frequencies.Now let us look at few examples of Grouped Frequency.
Example of Grouped Frequency Table:
Grouped frequency distribution
If the number of observation is large and the difference between the greatest and the smallest observations is large, then condense the data into classes or groups
There are two methods classifying the data according to the class interval:
* Exclusive method
* Inclusive method
Methods of Classifying Data:
Exclusive method:
when the class intervals are so fixed that the upper limit of one class is the lower limit of the next class, it is called Exclusive Method of classification. In this method upper limit of the class is not included in the class.
Inclusive Method:
In this method the classes are so formed that the upper limit of a class is included in that class.
Hope you like the above example of Grouped Frequency.Please leave your comments, if you have any doubts.
Before we get into the details of what is grouped frequency,let us first learn about the meaning of frequency.
What is the meaning of Frequency??
A frequency distribution is a tabular collection of data showing the frequency of each observation.
Frequency distributions are two types:
* Discrete frequency distribution
* Grouped frequency distribution
Grouped Frequency:
The grouped frequency table is the frequency data value that occur the number of times in the frequency table. It is the particular value that occur number of times in the grouped frequency table.
For example if five students have scored 90 marks in mathematics in a test
Then the mark scored 90 is the frequency of 5 members. Here f can be represented as frequency of grouped frequency table.
The frequency table can be constructed by arranging collected data value. The frequency tables are arranged in ascending order by magnitude with their corresponding frequencies.Now let us look at few examples of Grouped Frequency.
Example of Grouped Frequency Table:
Grouped frequency distribution
If the number of observation is large and the difference between the greatest and the smallest observations is large, then condense the data into classes or groups
There are two methods classifying the data according to the class interval:
* Exclusive method
* Inclusive method
Methods of Classifying Data:
Exclusive method:
when the class intervals are so fixed that the upper limit of one class is the lower limit of the next class, it is called Exclusive Method of classification. In this method upper limit of the class is not included in the class.
Inclusive Method:
In this method the classes are so formed that the upper limit of a class is included in that class.
Hope you like the above example of Grouped Frequency.Please leave your comments, if you have any doubts.
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