Examlex
In the beginning of a group sales presentation,a salesperson should:
Spearman Rank Correlation
An unparametric method for determining rank correlation that evaluates the extent to which two variables' relationship can be characterized by a monotonic function.
Ordinal Variables
Variables that represent categories with a natural order but which do not have a fixed interval between values, allowing for ranking but not quantifiable difference measurement.
Interval Variables
Variables that have meaningful distances between measurements but do not have a true zero point, allowing for both positive and negative values.
Normality Requirement
The assumption that the data or residuals in certain statistical models follow a normal distribution, required for the validity of many tests.
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