1. Stem-And-Leaf Plot:
Create a stem-and-leaf plot for the following set of data, and then answer the questions below.
1. What is the lowest data value
(or lower extreme)?
2. What is the highest data value (or upper extreme)?
3. What is the range of the data?
4. What is the median of the data?
What is the mode of the data?
Describe the data set using SOCS.

2. Example #2 Make a stem-and-leaf plot for the following data set.
Describe the data using SOCS.
Describe the data set using SOCS if you were to include the data value of 36.

3. A double stem-and-leaf plot can display two sets of data at once
A double stem-and-leaf plot can display two sets of data at once. The stem is between the two bars, and the leaves are on each side. Leaves are in increasing order from the stem. Use the following stem-and-leaf plot to answer the questions below.
New Car Mileage (mi/gal)
City Highway
9 1
4 1
means 20 mi/gal means 27 mi/gal
Extension!
6. Find the mean of the city mileage and highway mileage for nine new cars.
7. Find the median of the city mileage and of the highway mileage.
8. Find the mode(s) of the city mileage and of the highway mileage.
9. Find the range of the city mileage and of the highway mileage.