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Which of the following did southerners use to attempt to justify slavery?
Dummy Variables
Variables created to include categorical data in regression models, converting categories to a numerical form.
Confidence Intervals
Ranges within which a population parameter is estimated to lie with a certain level of confidence, often used to indicate the reliability of an estimate.
Regression Coefficients
Parameters in a regression model that quantify the relationship between the dependent variable and each of the independent variables.
Sampling Error
The discrepancy between the statistical characteristics of a sample and those of the entire population, arising purely from the randomness of the sample selection.
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