Examlex
In a simple linear regression model, if r2 is 0.75, then 75% of the variation in the dependent variable y can be explained by the regression line, on the independent variable x.
Chi-Square Statistic
A statistical measure used in tests of independence to analyze the frequency distribution of observed data versus an expected data set.
Null Hypothesis
A hypothesis that there is no significant difference between specified populations, any observed difference being due to sampling or experimental error.
Sample Data
A subset of data collected from a larger population, used to analyze and make inferences about that population.
Analysis Of Variance
A statistical method used to compare and analyze the differences among group means in a sample.
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