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In simple random sampling, every population unit has an equal chance of being chosen.
Independent Variables
Variables in an experiment or model that are manipulated or controlled by the researcher to investigate their effect on dependent variables.
Dependent Variables
Variables in an experiment or model that are expected to change in response to changes in independent variables.
Intercept
In the context of a regression line, it is the expected value of the dependent variable when all independent variables are zero.
Slope
In the context of linear regression, the coefficient indicating the rate of change in the dependent variable for one unit change in an independent variable.
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