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1. Which of these statements describes a key distinction between an observational study and an experimental study?
A: Experimental studies are more representative of the larger population than observational studies.
B: Data is collected in experimental studies, but not in observational studies.
c: Observational studies try to answer a question, but experimental studies do not.
D: Experimental studies directly influence something to see its effect, but observational studies do not directly influence the subjects.
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1. Which of these statements describes a key distinction between an observational study and an exper...
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