Page 185 - Math Course 3 (Book 2)

Understanding Stem-and-Leaf Plots

Step 2
Draw a vertical line and write the stems 2 and 3 to Your Turn!
the left of the line.
Real World Example
Step 3 SPEED
Write the leaves to the right of the line, with the Display the following speeds given in miles per
corresponding stem. For example, for 2400, write 4 hour in a stem-and-leaf plot.
to the right of 2.
65 72 59 68 75 70 68 64 67 69 72 55
Stem Leaf

2 4 8 8 4 9 2 9 6 A. Stem Leaf
3 0 6 5 8 8 4 7 9

Step 4 7 2 5 0 2
Rearrange the leaves so they are ordered from 5 9 5
least to greatest. Then include a key or an 6|4 = 64 mph
explanation.
B. Stem Leaf
Stem Leaf
5 5 9
2 2 4 4 6 8 8 9 9
6 4 5 7 8 8 9
3 0
7 0 2 2 5
The key tells what
2|4 = 2400 lb the stems and 6|4 = 64 mph
leaves represent. C.
Stem Leaf

5 5 9
Stem Leaf
6 4 5 7 8 9
2 2 4 4 6 8 8 9 9
Answer 7 0 2 5
3 0 6|4 = 64 mph

2|4 = 2400 lb C. Stem Leaf

6 4 5 7 8 9
7 0 5 0 2

5 9 5
6|4 = 64 mph

Answer

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