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Data This #4:  Practice Test

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 
Which type of graph is best suited for looking for a relationship in a set of data?
a.
circle graph
c.
scatter plot
b.
line graph
d.
histogram
 
 
Figure 1.1 – Favourite Kinds of Music
data_4_files/i0030000.jpg
 

 2. 
In Figure 1.1, how many more people liked country better than rock?
a.
5
c.
15
b.
10
d.
20
 
 
Figure 1.2 – Time Spent Studying for a Math Test
data_4_files/i0050000.jpg
 

 3. 
How many intervals are there in the histogram in Figure 1.2?
a.
3
c.
5
b.
4
d.
6
 
 
Figure 1.3 – Toronto’s Average Daily Temperature
data_4_files/i0070000.jpg
 

 4. 
In Figure 1.3, what is the difference in average temperatures for the hottest month and the coldest month?
a.
24oC
c.
28oC
b.
26oC
d.
30oC
 
 
Figure 1.4 – Science Test Marks
data_4_files/i0090000.jpg
 

 5. 
In Figure 1.4, what percentage of students obtained a mark of 71% or higher?
a.
50%
c.
71%
b.
61%
d.
82%
 

 6. 
If a set of data has an outlier, which measure of tendency should be used?
a.
mean
c.
mode
b.
median
d.
none of the above
 

 7. 
What is the mean of 88, 81, 90, and 85?
a.
81
c.
89
b.
86
d.
90
 

 8. 
What is the median of 5, 9, 3, 11, and 7?
a.
5
c.
9
b.
7
d.
11
 

 9. 
What is the median of 29, 18, 27, 24, 31, 20, and 30?
a.
26
c.
30
b.
28
d.
none of the above
 

 10. 
What is the median of 90, 85, 92, 77, 99, 65, and 75?
a.
83
c.
90
b.
85
d.
99
 

 11. 
What is the median of 102, 101, 56, 87, 92, and 55?
a.
89
c.
91
b.
90
d.
none of the above
 

 12. 
What is the median of 25, 36, 49, 58, 56, 13, 65, 47, and 30?
a.
42
c.
51
b.
47
d.
none of the above
 

 13. 
What is the mode of 2, 7, 6, 5, 4, 5, 2, 10, 5, and 3?
a.
2
c.
6
b.
5
d.
There is no mode.
 

 14. 
What is the mode of 5, 10, 13, 12, and 8?
a.
10
c.
13
b.
12
d.
There is no mode.
 

 15. 
What is the mode of 73, 84, 84, 90, 73, 65, and 73?
a.
73
c.
both a and b
b.
84
d.
There is no mode.
 

 16. 
What is the mode of $40, $89, $45, $52, $60, and $89?
a.
$89
c.
$45
b.
$54
d.
There is no mode.
 

 17. 
Which of the following data sets has no mode?
a.
1, 2, 3, 4, 4, 5, 6, 7, 7
c.
2, 2, 4, 4, 6, 6, 8, 8
b.
12, 13, 16, 21, 22, 24, 25, 26, 26
d.
10, 20, 30, 30, 40, 50, 50
 

 18. 
Which of the following data sets has two modes?
a.
1, 2, 3, 4, 4, 5, 6, 7, 7
c.
2, 2, 4, 4, 6, 6, 8, 8
b.
12, 13, 16, 21, 22, 24, 25, 26, 26
d.
10, 20, 30, 35, 40, 50, 50
 
 
Figure 1.9 – Nelson City Budget
data_4_files/i0240000.jpg
 

 19. 
Using Figure 1.9, which of these is correct?
a.
Most of the city’s budget is spent on parks.
b.
The city spends twice as much on schools as it does on parks.
c.
The city spends the least amount of money on road repair.
d.
Half the city budget is spent on police and fire.
 

 20. 
Using Figure 1.9, which of these is incorrect?
a.
The city doesn’t spend any money on the fire department.
b.
The city spends the most money on schools.
c.
The city spends half of its budget on schools.
d.
The city spends $40 of every $100 on schools.
 

 21. 
Refer to Figure 1.9 to answer the following: If the total Nelson City Budget is $600 000, how much is spent on schools?
a.
$24 000
c.
$120 000
b.
$60 000
d.
$240 000
 
 
Figure 2.1 – Time Spent Working
data_4_files/i0280000.jpg
 

 22. 
Grade 11 students were surveyed about the number of hours they spent working each week. The results are in Figure 2.1. What is the size of each interval in the graph?
a.
1 h
c.
3 h
b.
2 h
d.
4 h
 

 23. 
Grade 11 students were surveyed about the number of hours they spent working each week. The results are in Figure 2.1. What percentage of students worked between 11 and 15 hours each week?
a.
12%
c.
60%
b.
30%
d.
100%
 
 
Figure 2.3 – 5-km Race Times
data_4_files/i0310000.jpg
 

 24. 
The time results for people running a 5-kilometre race are in Figure 2.3. How many intervals are in the graph?
a.
3
c.
5
b.
4
d.
6
 

 25. 
The time results for people running a 5-kilometre race are in Figure 2.3. In which interval would you place a runner who ran the race in exactly 21 minutes?
a.
15 – 18 minutes
c.
21 – 25 minutes
b.
18 – 21 minutes
d.
none of the above
 
 
Figure 2.6 – Shot Put Distances
data_4_files/i0340000.jpg
 

 26. 
At a local track and field competition, the distance of the shot put throws were recorded and displayed in a histogram. See Figure 2.6. How many intervals are in the graph?
a.
3
c.
5
b.
4
d.
6
 

 27. 
At a local track and field competition, the distance of the shot put throws were recorded and displayed in a histogram. See Figure 2.6. In which interval would you place a shot putter who threw a distance of 12 m?
a.
8 – 12 m
c.
16 – 20 m
b.
12 – 16 m
d.
20 – 24 m
 

 28. 
data_4_files/i0370000.jpg
The graph above indicates
a.
more students are studying to become doctors
b.
tuition increases every year
c.
tuition decreases every year
d.
none of the above
 
 
Figure 3.2 – Basketball Points
data_4_files/i0380000.jpg
 

 29. 
A basketball coach recorded the amount of time each player played and how many points the player scored in one game. The results are in Figure 3.2. Heather’s data is not recorded, but she played for 9 minutes. Use the graph to estimate the number of points she scored.
a.
1
c.
15
b.
3
d.
18
 

 30. 
Which value should be removed from the following data to make the median 50?
50, 77, 35, 27, 68, 72, 43, 35
a.
43
c.
72
b.
68
d.
77
 



 
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