FIGURE PPT 6-7 
In the accompanying figure, item 2 points to the ____.
Definitions:
Wilcoxon Rank-sum Test
A non-parametric statistical test used to compare two independent samples to determine if they come from the same distribution.
Independent Samples
Two or more groups of samples that are not related or connected in any way in the context of an experiment or study.
Relative Frequency Distributions
A distribution where each value is expressed as a relative frequency or proportion of the total number of occurrences.
Normal Approximation
The process of using the normal distribution to approximate the distribution of a sample statistic.
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