Social Studies, 23.06.2019 17:00 smart1212

What is the difference between an observational study and anâ€‹ experiment? choose the correct answer below. a. in anâ€‹ experiment, a treatment is applied to part of a population and responses are observed. in an observationalâ€‹ study, a researcher measures characteristics of interest of a part of a population but does not change existing conditions. b. in anâ€‹ experiment, a treatment is applied to an entire population and responses are observed. in an observationalâ€‹ study, a researcher measures characteristics of interest of an entire population but does not change existing conditions. c. in anâ€‹ experiment, a researcher measures characteristics of interest of a part of a population but does not change existing conditions. in an observationalâ€‹ study, a treatment is applied to part of a population and responses are observed. d. in anâ€‹ experiment, a researcher measures characteristics of interest of an entire population but does not change existing conditions. in an observationalâ€‹ study, a treatment is applied to an entire population and responses are observed.

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