Table 5-2 
-Refer to Table 5-2.Which of the following best describes good X
Definitions:
Error Variable
A variable in statistical models that represents the deviation of observed values from the predicted values, reflecting unexplained or random variation.
Normal
Referring to a bell-shaped distribution that is symmetric about its mean, used in statistics to describe well-behaved data sets.
Total Variation
The overall measure of the spread or dispersion of a set of data points from the mean or expected value.
SSR
Sum of Squares due to Regression, a measure used in statistical analysis to determine the variation explained by the independent variable(s) in a regression model.
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