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What is Data?

  • Without data, you are just another person with an opinion. - W. Edwards Demming
  • You can have data without information, but you cannot have information without data. - Daniel Keys Moran

Data is a collection of facts like numbers, figures, texts, observations, or just a description of things. Data is important because, without data, there would be no world. The world is built upon data, so it makes sense to learn how to use it so that you can benefit the world in many ways.

When we have access to data, we can

  1. Portray a story
  2. Provide some meaningful information out of it
  3. Identify the problems and make informed decisions

Curious to know?

  • How Information is Different from Data?
  • What are the examples of Data?

We will learn these things in detail, but before that, a short introduction on its sources

What are the sources of Data?

Data can be collected from multiple sources, but majorly these sources are classified into two categories.

  1. Primary Data Source
  2. Secondary Data Source

1) Primary Data Source:

The term 'primary' here refers to the data which you collect or gather yourself, rather than depending on any other third party. The data which is directly collected from the source for the first time.

2) Secondary Data Source:

The term 'secondary' here refers to the data that has already been collected through primary sources and made available for others to use. It is a type of data that has already been collected in the past through primary data collection techniques. 


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