What is Data?
Data is defined as the collection of information, which may either be saved or obtained from other sources.
The data collected directly is called primary data, and the data collected from other sources is called secondary data.
There are two methods of data collection.
In this method, the information is collected directly from sources, by visiting different places, etc.
In this method, the information is collected indirectly, either by contacting different people or from the newspaper, radio, and other media sources.
Here is an example of data.
This is student data collected from their school. The given data has been arranged, according to the number of boys and girls studying in the respective classes.
|Class||Total Number of Students||Boys||Girls|
Graphical Representation of Data
We can represent the collected information or the data in different tables and through other graphs.
The graph represented by bars is called a bar graph.
The graph represented with the help of a circle/circular shape is called a pie chart.
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