Statistics/Different Types of Data/PS

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[edit] Primary and Secondary Data

Data can be classified as either primary or secondary.

[edit] Primary Data

Primary data mean original data that have been collected specially for the purpose in mind.

Research where one gathers this kind of data is referred to as field research .

For example: a questionnaire.

[edit] Secondary Data

Secondary data are data that have been collected for another purpose and where we will use Statistical Method with the Primary Data. It means that after performing statistical operations on Primary Data the results become known as Secondary Data.

Research where one gathers this kind of data is referred to as desk research .

For example: data from a book.

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