Name: 
 

Quiz 8.1-8.2



Short Answer
 
 
Use the stem-and-leaf plot.
Stem
Leaf
0
0  4 
1
7  9 
2
3  4  5  7 
3
4
2  8 
 Key: 2|3 = 23
 

 1. 

How many data values are in the set?
 

 2. 

What is the least value? greatest value?
 

 3. 

Is the value 23 in the set? Explain.
 
 
Make a stem-and-leaf plot of the data.
 

 4. 


Hours Online
12
13
7
23
9
14
11
9
7
23
5
21
 

 5. 


Test Scores (%)
86
63
95
74
63
95
95
99
99
63
78
94
67
75
87
 

 6. 


Richter Magnitudes
4.8
5.8
5.6
5.2
6.2
8.5
7.6
4.2
8.8
8.1
8.5
8.3
 

 7. 

The resting pulse rates of ten people in a yoga class are 78, 65, 67, 75, 63, 87, 72, 92, 77, and 88. Make a stem-and-leaf plot of the data. Describe the distribution of the data.
 
 
Display the data in a histogram.
 

 8. 


Pairs of Shoes Owned
Shoes
Frequency
1-5
13
6-10
12
11-15
5
16-20
4
 

 9. 


On Hold
Minutes
Frequency
0-2
2
3-5
4
6-8
7
9-11
5
12-14
3
 

 10. 


Hair Length
Inches
Frequency
0-2
7
3-5
5
6-8
1
9-11
4
12-14
7
 



 
Check Your Work     Start Over