📊 Topic Summary
Stem-and-leaf plots and dot plots are simple ways to organize and visualize data. A stem-and-leaf plot separates each data point into a 'stem' (usually the leading digit(s)) and a 'leaf' (the last digit). This shows the distribution of the data. A dot plot represents each data point as a dot above a number line, making it easy to see clusters and gaps in the data.
Both are useful for quickly understanding the shape and spread of a dataset. Let's test your knowledge!
🔤 Part A: Vocabulary
Match the term with its definition:
| Term |
Definition |
| 1. Stem |
A. A graph using dots to represent data points above a number line. |
| 2. Leaf |
B. The last digit of a data point in a stem-and-leaf plot. |
| 3. Dot Plot |
C. The leading digit(s) of a data point in a stem-and-leaf plot. |
| 4. Distribution |
D. The arrangement of data values. |
| 5. Data Set |
E. A collection of related data points. |
✍️ Part B: Fill in the Blanks
Complete the following sentences:
- In a stem-and-leaf plot, the ________ represents the larger place values.
- A dot plot is useful for showing ________ in data.
- The ________ shows how data is spread out.
- Each ________ in a dot plot represents one data point.
- Stem-and-leaf plots and dot plots are used to ________ data.
🤔 Part C: Critical Thinking
Explain a situation where a dot plot would be more useful than a stem-and-leaf plot, and why. Give an example.