Examlex
Determine the check digit for the UPC number 0 01339 19780.
Contingency Table
A type of table used in statistics to summarize the relationship between several categorical variables, showing the frequencies at which certain combinations of variables occur.
Two-tail Test
A statistical test that determines if there are any significant differences between two population means or parameters, checking for deviations in two opposite directions from the null hypothesis.
Population Proportion
A statistic that represents the fraction of the population that has a particular characteristic or attribute.
Chi-squared Test
A statistical test used to determine the likelihood of an observed distribution of data differing from a theoretical distribution.
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