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Stratified Random Sampling
A sampling method that involves dividing a population into subgroups and randomly selecting samples from each group, ensuring representation.
Sampling Techniques
Methods used in statistics to select individual observations intended to yield some knowledge about a population of concern.
Primary Research
The collection of original data through direct methods such as surveys, interviews, experiments, or observation, as part of a research study.
Secondary Research
The process of synthesizing existing research and information, as opposed to collecting new data.
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