ggplot2 Exercises Recreate the following plots shown below. Don't worry if your plots don't match exactly what is shown below, as long as you have a general understanding of ggplot2 and the grammar of graphics Important Note! Some of the images may be distorted from the conversion to a web format For the first few plots, use the mpg dataset library(ggplot2) library(ggthemes) head(mpg) Histogram of hwy mpg values: Barplot of car counts per manufacturer with color fill defined by cyl count Switch now to use the txhousing dataset that comes with ggplot2 head(txhousing) Warning message