A stem$-$and$-$leaf display or stem$-$and$-$leaf plot is a device for presenting quantitative data in a graphical

format, similar to a histogram, to assist in visualizing the shape of a distribution. They evolved from

Arthur Bowley's work in the early $1900$s and are useful tools in exploratory data analysis. Stemplots

became more commonly used in the $1980$s after the publication of John Tukey's book on exploratory

data analysis in $1977.$ The popularity during those years is attributable to their use of monospaced

$($typewriter$)$ typestyles that allowed computer technology of the time to easily produce the graphics.

Modern computers' superior graphic capabilities have meant these techniques are less often used.$$

$--$Wikipedia $($retrieved $9/12/2023)$

Find on the D$2$L three $$StemAndLeaf$$ example datafiles. Consider the following specifications.

a$)$ Greets the user.

b$)$ Asks the user to input a $1,2$ or $3.$

c$)$ Given the input, reads in the appropriate datafile and displays a stem$-$and$-$leaf plot.

a$.$ Note: This will require you to make several design decisions. I am not looking for a

specific format, but the final format should be well thought out.

d$)$ Loops until the user wishes to exit $($e$.$g$.,$ by entering $0$ or another keyword$).$

Design a top$-$down structure chart for your program.

Record a three minute video in which you present your design. Specifically, answer the following

questions:

$$ What are the important steps in displaying a stem$-$and leaf plot?

$$ How will your main function be organized?

$$ How many levels does your design have? Choose one of the lower level functions to describe in

more detail.

Submission: Submit a single $.$pdf file containing the top$-$down design. Do not zip or archive the file. Your

document must include your name, date, video link, and the honor statement, $$I have not given or

received any unauthorized assistance on this assignment.$$