Name:
Name: _________________________________________ Date: _________________
Stem-and-Leaf Plots
[pic]
Exercises:
1. Display the following data in a stem-and-leaf plot.
2. Display the following set of test scores in a stem-and-leaf plot.
{84, 85, 91, 52, 71, 73, 92, 98, 85, 88, 82, 71, 73, 100, 84}
3. a. Using the stem-and-leaf plot at the left, what is the speed of the fastest roller
coaster?
b. Using the stem-and leaf plot at the left, what is the speed of the slowest roller
coaster?
c. Using the stem-and leaf plot at the left, what is the median speed?
|6th Grade Students’ Summer Growth (in |
|inches) |
|1.1 |0.2 |
|0.8 |1.5 |
|3.1 |1.8 |
|2.2 |0.9 |
|2.5 |1.4 |
4. Display the following set of data in a stem-and-leaf plot.
Back-to-Back Stem-and-Leaf Plots
These types of stem-and-leaf plots are used to compare two sets of data.
5. The back-to-back stem-and-leaf plot below shows the average monthly temperatures for Seattle, Washington, and Helena, Montana.
a. Which city has lower monthly temperatures?
Explain.
b. Which city has more varied temperatures?
c. What is the median monthly temperature for Seattle?
d. What is the median monthly temperature for Helena?
6. Display the following test scores in a back-to-back stem-and-leaf plot.
Period 1: {88, 85, 62, 66, 83, 91, 95, 89, 65, 52, 76, 63, 88, 84, 83, 90, 91, 97}
Period 5: {52, 55, 62, 89, 90, 91, 84, 83, 71, 73, 78, 64, 66, 68, 70, 75, 73, 65}
Name: _________________________________________ Date: _________________
Stem-and-Leaf Plots – Practice Worksheet
Display the following sets of data in a stem-and-leaf plot.
1. Run times (in seconds): {14.8, 13.2, 14.1, 12.9, 10.6, 12.4, 12.8, 14.1, 13.6, 12.4}
2.
Display the following sets of data in a back-to-back stem-and-leaf plot.
3. NCAA Women’s Basketball Statistics – Overall Games Won
Big Ten: {5, 12, 21, 20, 11, 15, 6, 8, 18, 22, 10}
Big East: {18, 21, 7, 13, 20, 25, 21, 19, 17, 11, 13, 14}
4. Use the back-to-back stem-and-leaf plot at the right to answer the following questions.
a. What is the highest morning relative humidity?
b. What is the lowest afternoon relative humidity?
c. Does the relative humidity tend to be higher in the morning or
in the afternoon?
5. The stem-and-leaf plot below tracks the number of texts that Allison sends each day.
a. Which interval contains the majority of Allison’s texts?
b. What is the median number of texts that Allison sends?
1 | 5 = 15 texts
6. Which of the following is a true statement?
A. The median amount of protein in dairy products
is 9 grams.
B. The difference between the greatest and least amount of protein in dairy products is 28 grams.
C. The average amount of protein in legumes, nuts, and seeds is more than the average amount in dairy products.
D. The greatest amount of protein in legumes, nuts, and seeds is 93 grams.
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