Question 4 4 pts In the USStates data frame, suppose you want to explore the relationship between MccainVote and Region. For each line of code, decide whether it is a good way to explore this relationship or not. gf_histogram(-Region, data=USStates) %>% gf_facet_grid[McCainVote -) not good gf_histogram(-McCainVote, data USStates] %%> gf_facet_grid(Region - ) good gf_histogram(Region-McCainVote, data=USStates) not pood gf_boxplot[McCainVote-Region, data=USStates) good D Question 5 4 pts You run the following command: StateSample