Examlex
Which of the following best explains why special interest groups maintain so much power in the U.S. political process?
Range
The difference between the highest and lowest values in a dataset; it measures the extent of variability within the data.
Skewed
A description of the asymmetry in the probability distribution of a real-valued random variable, where the tail of the distribution is longer on either the right (positively skewed) or the left (negatively skewed) side.
Sample Mean
The average value of a set of data points collected from a sample of a population.
Median
The middle value of a data set when it is ordered from least to greatest, effectively splitting the data set into two equal parts.
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