1. **State the problem:** We are given a list of times in minutes: 8, 7, 20, 24, 10, 15, 14, 10, 8, 16, 12, 24, 29.
2. **What is a stem-and-leaf diagram?** It is a way to organize data to show its distribution. The "stem" is the leading digit(s), and the "leaf" is the last digit.
3. **Step 1: Sort 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: Group leaves by stems:**
- Stem 0: 7, 8, 8
- Stem 1: 0, 0, 2, 4, 5, 6
- Stem 2: 0, 4, 4, 9
6. **Step 4: Write the stem-and-leaf diagram:**
$$
\begin{array}{r|l}
\text{Stem} & \text{Leaves} \\
0 & 7\ 8\ 8 \\
1 & 0\ 0\ 2\ 4\ 5\ 6 \\
2 & 0\ 4\ 4\ 9
\end{array}
$$
This diagram shows the distribution of times clearly, with each leaf representing a unit digit of a time value.
Stem Leaf 3B7821
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