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Expected Frequency
The number of occurrences predicted in a category of a contingency table based on the assumption of a particular hypothesis, commonly used in chi-squared tests.
Expected Frequency
The number of occurrences of an event expected in a study based on a probability model.
Sample Size
The number of observations or subjects used in a study or experiment, which represents a portion of the population being studied.
Test Statistic
A value calculated from sample data used to determine whether to reject the null hypothesis in a statistical test.
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