Discussion
.............. sample is representative of the entire population.
Answer: A
A random sample is representative of the entire population.
In random sampling every member of the population has an equal and known chance of being chosen. Because chance, not the researcher's choice, decides who is selected, the sample tends to mirror the population, and its results can be generalised with a measurable sampling error.
A purposive sample is chosen deliberately by the researcher for a particular purpose, so it is not representative by design. 'Strategic' is not a standard sampling method, and a biased sample is, by definition, one that does not represent the population.
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