Mathematics, 20.09.2020 18:01, bangbrokevo5685

Which of the following is not a characteristic of both experiments and observational studies?
A. The data collected might be studied for patterns.
B. The researcher does not control or change the population.
O C. The subjects are observed, and their behavior is recorded.
D. The researcher selects a sample of the population to study.
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Which of the following is not a characteristic of both experiments and observational studies?
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