Answers Advanced Algebra Concepts and Connections_TC_Online Learning Unit Test — Unit testQuestion 5

5

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Unit Test — Unit test

Question 5 • Advanced Algebra: Concepts and Connections_TC_Online Learning

The difference between an observational study and an experiment is that

Answer

A

in an observational study, only one group is studied, and in an experiment, two groups are studied.

B

in an observational study, the researchers do not control treatment, and in an experiment, they do.

C

in an experiment, cause-and-effect is analyzed, and in an observational study, it is not.

D

in an experiment, one group is studied over a short period of time, and in an observational study, the group is studied over a longer period of time.

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