If you have an existing package that doesn't have an .Rproj file, you can use devtools for the use_rstudio(". . . . . . . ./to/package") to add it.

A. geom_scatter() B. scatter() C. geom_point() D. point()

A. color = "red" B. fill = "red" C. col = "red" D. aes(color = "red")

A. Adds aesthetic mappings to the plot B. Adjusts the axis labels and titles C. Applies statistical transformations to the data D. Sets the color of the entire plot

A. Sets the title of the entire plot B. Adds a title to a specific layer of the plot C. Adds a title to the legend D. Adjusts the size of the title text