Which of the Following Statements Describes a Controlled Experiment

question 26

Multiple Choice

Which of the following statements describes a controlled experiment?

• A)an experiment that is repeated many times to ensure that the results are accurate
• B)an experiment that proceeds at a slow pace to guarantee that the scientist can carefully observe all reactions and process all experimental data
• C)an experiment with at least two groups,one of which does not receive the experimental treatment
• D)an experiment with at least two groups,one differing from the other by two or more variables

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Definitions:

Optimistic Bias

The tendency to believe that one is less likely to experience negative events and more likely to experience positive events than others.

Smoking-Related Disease

Illnesses that are directly caused or exacerbated by the act of smoking tobacco, including lung cancer, heart disease, and COPD.

Lung Cancer Death Rates

The frequency at which deaths occur due to lung cancer within a specific population over a certain period of time.

Data Showing

The presentation or display of information and statistics collected from various sources.