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 # 4.5 Statistical Analysis II
 As mentioned in the previous tutorial. Data is what gives us the basis to create models. By now you've probably used excel to create a line of best fit. In this tutorial, we will go deeper into how this works and how we can apply this to create our own models to make our own predictions.ile changes in local repository
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 ## Least Square Regression and Line of Best Fit
 
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 Linear regression is one of the most fundamental techniques in data analysis. It models the relationship between two (or more) variables by fitting a **straight line** that best describes the trend in the data.
 
 
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 ### Linear
 To find a linear regression line we can apply the 
 
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 Using the 
 
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 ## Extrapolation
 basis funct
 ## Moving average