Respuesta :
The following is not a characteristic of both experiments and observational studies; The researcher does not control or change the population. So the correct option B is correct.
What is an experiment?
Through experiments, two variables' cause and effect relationships are examined. This is where they differ from observations and interviews, which can only assume the existence of contexts and cannot provide evidence for them.
The environment of the test subjects is managed by an experiment depending on the issue.
Three things that characterize statistical experiments in general:
There are various outcomes that the experiment could produce.
In an experiment, the cause and the independent variable, is changed while the effect, the dependent variable, is measured and any unrelated factors are controlled.
Data collected about a population is not a characteristic of both observational studies and experiments.
It is possible to anticipate every outcome.
The following is not a characteristic of both experiments and observational studies; The researcher does not control or change the population. So the correct option B is correct.
Learn more about experiments here:
brainly.com/question/17274244
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