Examlex
A simple random sample is chosen in such a fashion that every possible subset of the same size has an equal chance of being selected.
Total N
The total number of observations or participants in a study or dataset.
Expected Frequencies
The counts or proportions one would expect in categories of a contingency table if there were no association between the variables.
Chi-square
A statistical test used to determine if there is a significant difference between observed frequencies and expected frequencies in one or more categories.
Normal Curve
A bell-shaped curve that represents a distribution of values, means, or variables symmetrically clustered around the mean.
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