Question

Use a stem-and-leaf plot (months as stems, days as leaves) to write the birthdays in order from earliest in the year to latest (1 = January, \(2=\text { February, and so on }) .\) Include a key with your stem-and-leaf plot.$$\begin{array}{|lllll|}\hline 10-11 & 4-14 & 7-31 & 12-28 & 4-17 \\\2-22 & 8-21 & 1-24 & 9-12 & 1-3 \\\4-30 & 10-17 & 6-5 & 1-25 & 5-10 \\\12-9 & 4-1 & 8-26 & 12-15 & 3-17 \\\4-30 & 2-3 & 11-11 & 6-13 & 11-4 \\\6-24 & 6-3 & 4-8 & 2-20 & 11-28 \\\\\hline\end{array}$$

Short answer

The completed stem-and-leaf plot will display the months in sequential order down the page (stems), with the days of each month (leaves) ordered from least to most next to each corresponding month. Including a key will make it clear that the stems represent the months and the leaves represent the days.

Step-by-step solution

Data Collection

Firstly, the given birthdays need to be collected and written down separately.

Data Sorting

The collected data should be sorted according to the months and days. The month forms the stem and the day forms the leaf.

Stem-and-Leaf Plot formation

With the sorted data, prepare a list. The left column should contain the month (stem) and the right column should consist of days (leaves). When inserting the leaves (days), make sure to keep them in order from least to most.

Final Key

Lastly, include a key to your stem-and-leaf plot, indicating that the stem represents months and the leaves represent the days of each month.