Examlex
An advantage of decentralized purchasing is the attention given to local needs.
Population Variance
A measure of the spread or distribution of a set of data values within an entire population.
Confidence Interval
A selection of values, extracted from sample analyses, believed to encompass the value of an unseen population parameter.
Sample Variance
The measure of dispersion within a sample data set, representing the average of the squared differences from the sample mean.
Chi-squared Distributed
A distribution used in hypothesis testing that is derived from the sum of squared deviations between observed and expected frequencies.
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