TABLE 14-4
A real estate builder wishes to determine how house size (House) is influenced by family income (Income) , family size (Size) , and education of the head of household (School) . House size is measured in hundreds of square feet, income is measured in thousands of dollars, and education is in years. The builder randomly selected 50 families and ran the multiple regression. Microsoft Excel output is provided below: 
-Referring to Table 14-4, what are the regression degrees of freedom that are missing from the output?
Definitions:
Observations
The instances or data points collected or recorded for the purpose of analysis.
Coefficient of Variation
A standardized measure of the dispersion of a probability distribution or frequency distribution.
Weights
Quantitative values assigned to elements of a set as a measure of their importance or influence in statistical calculations.
Grouped Data
Data that has been organized into groups or categories, often used in statistics for more efficient data handling and analysis.
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