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Linear Regression

# Linear Regression - What is Simple Linear Regression Linear...

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1 Linear Regression PH 647A Janet Wolf, MPH Spring 2009 2 What is Simple Linear Regression? A statistical technique that allows you to determine if a relationship exists between 2 variables … and what that relationship is Attempts to model the relationship between 2 variables by fitting a linear equation to observed data The process of fitting the best possible straight line through a series of points 3 What is Simple Linear Regression? Used to make predictions about a single value A way to examine how a factor (or factors) influences a continuous outcome measure One variable considered to be an independent (or explanatory or predictor) variable; the other a dependent (or criterion) variable 4 What is Simple Linear Regression? Regression can be used to determine the association between variables, but it does NOT show causality 5 Regression Equation The mathematical equation that can be used to predict the values of one dependent variable from known values

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Linear Regression - What is Simple Linear Regression Linear...

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