KonanTheClubber KonanTheClubber

08-01-2021
English

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What is the primary difference between an experiment and an observational
study?
A. An observational study involves many more people.
B. Observational studies always make correlations.
C. In an experiment, the researcher manipulates a variable.
D. Experiments are always done in a lab.

Respuesta :

elizabethg956x elizabethg956x

08-01-2021

a observational study is where nothing changes and just record what you see, but an experimental study is where you have a control group and a testable group.

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27-04-2021

Answer:

the answer is c

Explanation:

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