Examlex
Income is "effectively connected" with the conduct of a U.S. business only if
α
In statistics, α (alpha) typically denotes the level of significance, the probability of rejecting the null hypothesis when it is true.
Df
Short for degrees of freedom, referring to the number of independent pieces of information remaining after estimating one or more parameters.
Y-Intercept
The point where a line crosses the y-axis on a graph, indicating the value of y when x equals zero.
Regression Equation
A mathematical formula used to predict the value of a dependent variable based on one or more independent variables.
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