Correct Answer: census survey the correct answer to the question is a "census survey."
a census survey, by definition, involves the collection of data from every individual in an entire population. this type of survey is comprehensive and aims to gather information from all members of a specific group, rather than just a subset or sample. the primary advantage of a census survey is its ability to provide a complete and accurate representation of the population, since no individual is excluded from the survey.
however, conducting a census survey can be logistically challenging and often resource-intensive, especially when dealing with large populations. it requires significant planning, manpower, and financial resources to ensure that every individual is reached and their data is accurately recorded. despite these challenges, the data collected from a census survey is highly valuable, particularly in situations where precise and detailed information is required for decision-making or policy formulation.
in contrast, other types of surveys such as sampled surveys, case study surveys, or focus group surveys involve collecting data from only a portion of the population. these methods are generally more feasible and cost-effective when the population size is large, but they introduce sampling errors and may not fully represent the views of the entire population.
a census survey is particularly useful in scenarios where small, defined groups are being studied, or when every individual's response is critical for accurate analysis. however, for large populations, alternative survey methods may be more practical, although they sacrifice some level of detail and accuracy for feasibility.
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