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Question: Why is it necessary for a sample to be obtained randomly rather than conveniently?
Random sampling is essential to obtaining valid, generalizable results from data. It is important because it minimizes the possibility of bias and error from selecting particular samples that are convenient or unrepresentative of the larger population under study. Random sampling allows everyone in the target population to have an equal chance of being selected. This helps to ensure that the sample reflects the population it is meant to represent and results in more accurate and reliable data.
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