Start a new R Markdown file $(.$Rmd$)$ as you learned in the previous module.

Copy the following YAML header and the first code chunk to set up the global environment for knitting. You must submit the HTML report for me to grade your work. I will use your HTML file as a primary document for grading. The YAML header and the first code chunk below allow you to organize your work well knit the Rmd file even when there might be an error.

$---$

title: "Final Exam with two data sets"

author: "Jae Jung"

date: $\text{'}`$r Sys$.$time$()`\text{'}$

output:

html$\_$document:

toc: yes

toc$\_$depth: $5$

highlight: espresso

theme: journal