Mathematics, 27.09.2020 14:01 iamsecond235p318rq
In a study of 352 girl with a particular disease, the subjects were injected with vitamin to determine if the vitamins have an effect on the disease. Does the given description correspond to an observational study or an experiment?
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In a study of 352 girl with a particular disease, the subjects were injected with vitamin to determi...
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