1. **Problem Statement:** We are given a list of times (in minutes) taken by people to solve a puzzle: 8, 7, 20, 24, 10, 15, 14, 10, 8, 16, 12, 24, 29. 2. **What is a Stem-and-Leaf Diagram?** A stem-and-leaf diagram is a way to organize data to show its distribution. The "stem" represents the leading digit(s), and the "leaf" represents the last digit. 3. **Step 1: Organize the data in ascending order:** $$7, 8, 8, 10, 10, 12, 14, 15, 16, 20, 24, 24, 29$$ 4. **Step 2: Identify stems and leaves:** - Stems are the tens digits: 0, 1, 2 - Leaves are the units digits corresponding to each stem 5. **Step 3: Create the stem-and-leaf diagram:** - Stem 0: leaves 7, 8, 8 - Stem 1: leaves 0, 0, 2, 4, 5, 6 - Stem 2: leaves 0, 4, 4, 9 6. **Step 4: Write the diagram in ordered form:** $$\begin{array}{c|l} \text{Stem} & \text{Leaves} \\ \hline 0 & 7, 8, 8 \\ 1 & 0, 0, 2, 4, 5, 6 \\ 2 & 0, 4, 4, 9 \end{array}$$ 7. **Explanation:** - Each stem represents the tens place. - Each leaf represents the units place. - The leaves are listed in ascending order for clarity. This diagram visually shows the distribution of times taken to solve the puzzle.