Examlex
A customer just paid $318 for a Blu-ray player. If the cost was 60% of selling price what was the mark up amount?
Degrees of Freedom
The number of independent values or quantities that can vary in the calculation without violating any constraint.
Contingency Table
A tabular method used to summarize the relationship between several categorical variables, showing distribution of frequencies.
Qualitative Variables
Variables that describe or categorize attributes or properties of a subject without using numerical values.
Chi-Square Test
A statistical test used to determine if there is a significant difference between observed frequencies and expected frequencies in one or more categories.
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