Programming Using R:

The dataset iris contains the petal and sepal lengths and widths for three species of iris flowers. This dataset is merely a data frame, not a tibble. Using the function as_tibble(), save iris as a tibble, then use dplyr functions to produce a tibble that out- puts the mean sepal length and width for each of the three species. (Same dataset as the previous problem.) Use ggplot2 to create a scatterplot that plots sepal length versus sepal width, with differently colored points for each species. (Same dataset as the previous two problems.) Use both dplyr and ggplot2 to produce side-by-side boxplots of the ratios of sepal length to sepal width for each of the three species