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28.06.2019 •
Mathematics
What are the differences among an experiment, a study, and a survey? 1. in an observational study, randomization of subjects a. occurs b. does not occur 2. a survey a. poses no interference on subjects b. makes inferences about a population 3. in an experiment, to discern differences in a response variable. a. treatment is imposed b. inferences are made c. randomization does not occur
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