Examlex
A ______________ offers a very wide selection of a specific product category (such as books,toys,or sporting goods) at competitive prices.
Degrees Of Freedom
The quantity of unique variables or figures permissible in a statistical distribution adhering to set restrictions.
Chi-squared Test
A statistical method used to determine if there is a significant association between two categorical variables.
Null Hypothesis
A theory positing no substantial variance between designated groups, attributing any noted disparity to errors in sampling or experimentation.
Normal Distribution
A probability distribution, symmetric around the mean, shows that datasets close to the mean are encountered more often than ones farther away.
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