ggplot has a ... code creates a ggplot scatter plot with that data, including sizing points by total county population and coloring them by region. geom_smooth() adds a linear regression line ...

A first step in understanding the relationship between an outcome and explanatory variable is to visualize the data using a scatter plot, through which the regression line can be drawn. Scatter plots ...

The line of best fit is used to express a relationship in a scatter plot of different data points. It is an output of regression analysis and can be used as a prediction tool for indicators and ...