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Compared to the Milky Way, how many stars are contained in the most massive galaxies?
Secondary Data
Information that has been previously collected and published by others, used for research purposes as opposed to primary data gathered firsthand.
Structured Question
A structured question is a highly organized query formulated in a way that limits respondents' answers to specific choices, facilitating easier analysis of data.
Unstructured Question
An open-ended question that allows respondents to answer in their own words, providing qualitative insights into their thoughts or feelings.
Primary Data
Original and directly collected data specifically for the purpose of a research study or project.
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