: You are working with the penguins dataset. You create a scatterplot with the following code:ggplot(data = penguins) +geom_point(mapping = aes(x = flipper_length_mm, y = body_mass_g))You want to highlight the different years of data collection on your plot. Add a code chunk to the second line of code to map the aesthetic size to the variable year. NOTE: the three dots (…) indicate where to add the code chunk.geom_point(mapping = aes(x = flipper_length_mm, y = body_mass_g, size = year))What years does your visualization display? View
: A data analyst is working with the penguins data. The analyst creates a scatterplot with the following code:ggplot(data = penguins) +geom_point(mapping = aes(x = flipper_length_mm, y = body_mass_g, alpha = species))What does the alpha aesthetic do to the appearance of the points on the plot? View