Examlex
Find the partial fraction decomposition.
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Selection Bias
A distortion in a statistical analysis resulting from the method of collecting samples, where some members of the intended population are less likely to be included than others.
Natural Groups
Groups that exist in the real world as they are, without manipulation or creation for research purposes, such as ethnic or gender groups.
Two Groups
A research design involving comparison between two separate groups of participants to determine the effect of a variable.
Experiment
A scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
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