Examlex
What roles do interest groups play in the political process? In what ways do they promote or hinder the democratic process?
Population Standard Deviation
A measure of the dispersion of a population's values from the mean, representing how spread out the population data are.
Confidence Interval
A range of values, derived from the sample data, that is likely to contain the value of an unknown population parameter with a specified level of confidence.
Mean
The central value of a dataset, calculated as the sum of all values divided by the total number of values.
Standard Error
Standard error measures the accuracy with which a sample represents a population, quantifying the variability of the sampling distribution of a statistic.
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