What you’ll learn to do: Use a correlation coefficient to describe the direction and strength of a linear relationship. Scatterplots are an excellent way to visually inspect the data, but to further i...What you’ll learn to do: Use a correlation coefficient to describe the direction and strength of a linear relationship. Scatterplots are an excellent way to visually inspect the data, but to further investigate the relationship, it would help to quantify some metrics about the relationship. Form: Is the scatterplot evenly clustered around the line or are there regions where the scatter is more spread out? Does the shape of the scatterplot seem linear or curvilinear?
