A political scientist needs to poll all voters in Seoul, South Korea... What does this scenario describe?

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Multiple Choice

A political scientist needs to poll all voters in Seoul, South Korea... What does this scenario describe?

This scenario is about collecting information from every member of a defined group—the voters in Seoul. That describes a census, because the goal is to include the entire population of interest rather than just a subset. Using a sample would involve surveying only a portion of voters to infer about the whole, which isn’t what’s described here. A population survey is a broad term that could refer to either a census or a sample, so it’s less specific. A randomized trial is an experimental setup with random assignment to treatments, not simply polling voters.

This scenario is about collecting information from every member of a defined group—the voters in Seoul. That describes a census, because the goal is to include the entire population of interest rather than just a subset. Using a sample would involve surveying only a portion of voters to infer about the whole, which isn’t what’s described here. A population survey is a broad term that could refer to either a census or a sample, so it’s less specific. A randomized trial is an experimental setup with random assignment to treatments, not simply polling voters.

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