Examlex
To write a program that produces a report of employees by department number,the records must be grouped by department number before you begin processing.
Advanced Placement
A program in the United States and Canada that offers college-level curriculum and examinations to high school students.
Chi-square Test
A statistical approach intended to determine the existence of an important association between two variables that are categorical.
Null Hypothesis
A hypothesis used in statistics that suggests no significant difference or effect, serving as a default position before any evidence is considered.
Chi-square Test
A statistical test used to determine the association between categorical variables, assessing whether observed frequencies differ significantly from expected frequencies.
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