Name: 
 

Chapter 9 Test



Multiple Choice
Identify the choice that best completes the statement or answers the question.
 
 
Find the mean of the data.
 

 1. 


Goals Made
Player 1
| |
Player 2
| | |
Player 3
| |
Player 4
| | |
Player 5
0
a.
2.2
c.
2
b.
1.8
d.
0.6
 

 2. 


mc002-1.jpg
a.
3
c.
7.4
b.
6.3
d.
8.8
 
 
Find the median of the data.
 

 3. 

1, 8, 9, 2, –7, –5
a.
2.5
c.
1
b.
9
d.
1.5
 

 4. 

–6, –17, 22, 6, 12, –9, 17, 0
a.
0
c.
5
b.
6
d.
3
 
 
Find the mode of the data.
 

 5. 


Favorite Type of Music
Rock
Pop
Pop
Pop
Hip Hop
Pop
Rock
Country
Rock
Rock
Rock
Pop
Country
Rock
Rock
Country
Hip Hop
Pop
a.
Hip Hop
c.
Rock
b.
Country
d.
Pop
 

 6. 


Favorite Type of Music
Pop
Country
Hip Hop
Pop
Hip Hop
Hip Hop
Hip Hop
Country
Rock
Rock
Rock
Hip Hop
Country
Hip Hop
Rock
Rock
Country
Hip Hop
a.
Hip Hop
c.
Rock
b.
Country
d.
Pop
 
 
Find the range of the data.
 

 7. 

106, 74, 52, 32, 69, 92, 63
a.
74
c.
69
b.
54
d.
60
 

 8. 

130, 175, 101, 155, 99, 81, 92, 136
a.
83
c.
74
b.
94
d.
116
 

 9. 

The data set shows the wait times for several popular rides at an amusement park.
17, 100, 116, 47, 61, 40, 96
Find the range, interquartile range, and mean absolute deviation of the data.
a.
range mc009-1.jpg
IQR mc009-2.jpg
MAD mc009-3.jpg
c.
range mc009-7.jpg
IQR mc009-8.jpg
MAD mc009-9.jpg
b.
range mc009-4.jpg
IQR mc009-5.jpg
MAD  mc009-6.jpg
d.
range mc009-10.jpg
IQR mc009-11.jpg
MAD mc009-12.jpg
 
 
Find the mean absolute deviation of the data. Round your answer to the nearest tenth, if necessary.
 

 10. 


Number of Attendees at the Middle School Football Game
108
108
130
119
195
150
119
112
143
149
a.
20.8
c.
133.3
b.
16.2
d.
20.1
 

Numeric Response
 

 1. 

The table shows the lengths of salamanders displayed in science class. What is the mean length of the salamanders?
Length (cm)
5.2
5.1
5
5.9
3.8

 

Short Answer
 

 1. 

Display the data in a dot plot. Identify any clusters, peaks, or gaps in the data.
Number of Trees
3
4
5
4
4
5
5
4
1
3
3
5
 

 2. 

Display the data in a dot plot. Identify any clusters, peaks, or gaps in the data.
Number of Siblings
0
0
1
2
2
6
2
2
0
1
1
1
 

 3. 

The table shows the test scores of the students from two classes. What is the difference between the mean test scores of the two classes? Do outliers affect either mean? Explain.
  
Test Score (%)
Class 1
90
93
80
95
97
97
98
84
Class 2
70
71
87
71
87
84
87
70
 
 
Find the mean, median, and mode(s) of the data. Choose the measure that best represents the data. Explain your reasoning.
 

 4. 

6, 15, 14, 4, 13, 58, 5, 7, 4
 

 5. 

55, 59, 25, 23, 22, 25, 53, 50, 21
 
 
Find the mean, median and mode(s) of the data.
 

 6. 

11, 6, 8, 4, 11, 9, 7
 

 7. 

12, 15, 6, 3, 9, 14, 4
 
 
Find the median, first quartile, third quartile, and interquartile range of the data.
 

 8. 

135, 126, 107, 86, 125, 133, 141, 148
 

 9. 

82, 38, 43, 110, 94, 39, 80
 



 
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