Exercise

Other ggplot2 layers

A line plot is one way to display this data. You could also choose to display it as a scatter plot, with each year represented as a single point. This requires changing the layer (i.e. geom_line() to geom_point()).

You can also add additional layers to your graph, such as a smoothing curve with geom_smooth().

Instructions

100 XP

Change the plot to a scatter plot and add a smoothing curve.

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Instructions

Exercise