Examlex
Provide an appropriate response.
-The sum of a negative integer and a positive integer is always a negative integer.
Chi-squared Distribution
A probability distribution that describes the distribution of the sum of the squares of variables that are independently distributed according to a standard normal distribution.
Degrees of Freedom
The number of independent values or quantities that can vary in an analysis without violating any constraints.
Hypothesis Test
A procedure in statistics to determine if there is enough evidence to reject a null hypothesis in favor of an alternative hypothesis.
Chi-square Distribution
A statistical distribution used particularly in hypothesis testing, derived from the sum of the squares of a set of variables that follow a normal distribution.
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