Answer:
To minimize experimental inaccuracy
Explanation:
The experimental research is very important and exploration in nature. The control group is one of the parts of this study. In this study, the control group is taken just because to minimize the inaccuracy and increase the reliability and validity of the research.
In the Control group, the independent variable is manipulated except all other variables. The control group is that of the normal population that does not get an intervention. It is the baseline of the group that help to understand the comparison of two group intervention. The control group is only the baseline of an experiment.