Quantitative Data
The use of sampling techniques (such as consumer surveys) whose findings may be expressed numerically, and are amenable to mathematical manipulation enabling the researcher to estimate future events or quantities. It is easy to analyse statistically, common forms of this are Surveys, questionnaires and experiments.
Qualitative Data
The term qualitative data is used to describe certain types of information. This is almost the converse of quantitative data, in which items are more precisely described data in terms of quantity and in which numerical values are used.
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