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If you have ever taken a math or statistics class, you’ve probably heard the old adage "Correlation does not imply causation". The first part of this course explores this further, and will offer a broad overview on correlational analysis. In the second part you will leave descriptive statistics behind, and dive into regression, prediction and inferential statistics.
In the first chapter you will be given a broad overview on the concepts behind correlation as well as some examples. Furthermore, you will walk through the mathematical calculation of the correlation coefficient r, that is the Pearson product-moment correlation coefficient. Finally, there will be a part on the assumptions underlying a typical correlational analysis.
In chapter three you will do the calculation of the regression coefficients yourself in R. Next, there will be a detailed study of the assumptions underlying a linear regression analysis. The end is reserved for Anscombe’s quartet, a famous statistical example that shows you the importance of graphing data before analyzing it.
In this first chapter on linear regression, professor Conway will give you an overview on regression; What does it do? What is it used for? You will see how to build and execute a regression model in R, and what the effect is of adding additional regressors.
In the first chapter you will be given a broad overview on the concepts behind correlation as well as some examples. Furthermore, you will walk through the mathematical calculation of the correlation coefficient r, that is the Pearson product-moment correlation coefficient. Finally, there will be a part on the assumptions underlying a typical correlational analysis.
In this first chapter on linear regression, professor Conway will give you an overview on regression; What does it do? What is it used for? You will see how to build and execute a regression model in R, and what the effect is of adding additional regressors.
In chapter three you will do the calculation of the regression coefficients yourself in R. Next, there will be a detailed study of the assumptions underlying a linear regression analysis. The end is reserved for Anscombe’s quartet, a famous statistical example that shows you the importance of graphing data before analyzing it.
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