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Why is it necessary to select appropriate data sources before collecting data?

Answer and explanation

Correct answer: To obtain reliable, relevant, and suitable-quality data

Choosing sources beforehand helps ensure that the collected data is relevant to the objective, sufficiently reliable, and appropriate in quality. Poorly chosen sources may introduce bias, errors, or gaps. Therefore, option A is correct; collecting unnecessary data is not the goal.

Related tags

Data CollectionData SourcesData QualityData Science MethodologyReliable Data

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