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Reverse osmosis is the only practical method of desalination.
Nominal Variables
Variables that represent categories with no intrinsic ranking or order, such as gender, nationality, or brand names.
Degrees of Freedom
The number of values in a calculation that are free to vary without violating any constraints.
Contingency Table
A tabular method to display the frequency distribution of variables along with their joint distribution.
Contingency Table
A type of table used in statistics to summarize the relationship between two categorical variables, showing the frequency of various combinations of outcomes.
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