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Solve the equation.
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Central Tendency
A statistical measure that identifies a single value as representative of the middle of a dataset, commonly by using the mean, median, or mode.
Variance
A measure of the distribution of data points in a data set around the mean, indicating how spread out the data points are.
Z-score
A statistical measure representing the number of standard deviations a data point is from the mean of its data set, used in standardizing scores for comparison.
Probability Sampling
Sampling based on random selection of the sample units.
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