codi17
codi17 codi17
  • 14-05-2017
  • Mathematics
contestada

which of the following is part of a observational study?

Placebo
Treatment
Control Group
Variable of interest

Respuesta :

Аноним Аноним
  • 14-05-2017
B. Treatment.
I do not know what Placebo is, though, so before you put this answer, please explain it to me.
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