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Adjusted gross income (AGI)
I.is used to provide limitations on certain deductions from AGI.II.is unique to the individual income tax formula.
III.is the result before subtracting certain allowable personal expenditures from gross income.
Holding Constant
A method in analysis where certain variables are kept unchanged to isolate the effect of other variables.
Second-order Model
A statistical or mathematical model that includes not only the main effects but also their interactions and quadratic terms, enabling the capture of curvature in the data relationships.
First-order Model
A model in statistical analysis where the current value of a variable is primarily based on its immediate previous value, often used in time series analysis.
Predictor Variable
A variable used in statistical modeling to predict or forecast the outcome of an interest variable.
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