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If one galaxy is twice as far from Earth as another,its velocity will be
Random Sample
A sample selected from a larger population in such a way that each member has an equal chance of being included, enhancing representativeness.
Laboratory Experiments
Controlled experiments conducted in a lab setting where variables can be manipulated and outcomes can be measured precisely.
Testable Predictions
Hypotheses or forecasts that can be confirmed or refuted through experimentation or observation.
Psychological Theory
A set of principles aimed at explaining and predicting behavior, emotions, and thoughts.
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