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Mathematics, 17.01.2020 01:31 Gearyjames8
Which option below best describes the difference between an experiment and an observational study? a. the values in an experiment are chosen at random, but not in an observational study. b. the values in an observational study are chosen at random, but not in an experiment. c. the groups in an experiment are chosen at random, but not in an observational study. d. the groups in an observational are chosen at random, but not in an experiment.
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Which option below best describes the difference between an experiment and an observational study? a...
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