Examlex
Simplify the radical expression as much as possible. Assume all variables represent positive numbers.
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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