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Data THIS II!

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

 1. 
Which of the following is not a measure of central tendency?
a.
mean
c.
mode
b.
median
d.
range
 
 
Figure 1.1 – Favourite Kinds of Music
data_this_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
 

 3. 
In Figure 1.1, what is the total number of people that were surveyed?
a.
20
c.
45
b.
35
d.
60
 
 
Figure 1.2 – Time Spent Studying for a Math Test
data_this_files/i0060000.jpg
 

 4. 
In Figure 1.2, how many students spent more than 40 minutes studying?
a.
10
c.
22
b.
18
d.
30
 
 
Figure 1.4 – Science Test Marks
data_this_files/i0080000.jpg
 

 5. 
What is the size of each interval in Figure 1.4?
a.
6%
c.
12%
b.
9%
d.
20%
 

 6. 
In Figure 1.4, in which interval would a mark of 57% belong?
a.
41 – 50%
c.
61 – 70%
b.
51 – 60%
d.
none of the above
 

 7. 
In Figure 1.4, how many student obtained a mark in the interval of 91 – 100%
a.
2
c.
4
b.
3
d.
5
 

 8. 
In the data set below, which value is an outlier?
13, 18, 21, 12, 15, 19, 67, 21, 14
a.
21
c.
13
b.
67
d.
18
 

 9. 
What is the mean of 88, 81, 90, and 85?
a.
81
c.
89
b.
86
d.
90
 

 10. 
What is the median of 5, 9, 3, 11, and 7?
a.
5
c.
9
b.
7
d.
11
 

 11. 
What is the median of 33, 45, 29, 40, 42, and 44?
a.
40
c.
42
b.
41
d.
none of the above
 

 12. 
What is the median of 5.9, 4.8, 5.0, 6.1, 6.1, 3.9, 4.7, and 4.7?
a.
4.7
c.
6.1
b.
4.9
d.
none of the above
 

 13. 
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 2.3 – 5-km Race Times
data_this_files/i0180000.jpg
 

 14. 
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
 

 15. 
data_this_files/i0200000.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
 

 16. 
Which is an example of a census?
a.
asking all the students in a school who their favourite band is
b.
conducting an online survey to determine the most favoured band
c.
randomly selecting customers in a store to ask who their favourite band is
d.
none of the above
 

 17. 
What is the mean of 22, 28, and 37?
a.
22
c.
29
b.
28
d.
30
 

 18. 
What is the mean of 15, 16, and 20?
a.
16
c.
18
b.
17
d.
20
 

 19. 
What is the mean of 7, 14, 21, 33, and 25?
a.
20
c.
33
b.
25
d.
100
 

 20. 
What is the mean of $14, $31, $15, and $20?
a.
$20
c.
$31
b.
$24
d.
$80
 

 21. 
What is the median of 29, 18, 27, 24, 31, 20, and 30?
a.
26
c.
30
b.
28
d.
none of the above
 

 22. 
What is the median of 90, 85, 92, 77, 99, 65, and 75?
a.
83
c.
90
b.
85
d.
99
 

 23. 
What is the median of $5.25, $6.86, $4.99, $5.99, and $2.49?
a.
$5.12
c.
$5.99
b.
$5.25
d.
none of the above
 

 24. 
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
 

 25. 
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.
 

 26. 
What is the mode of 73, 75, 81, 95, 91, 80, 87, 90, and 87?
a.
84
c.
87
b.
85
d.
There is no mode.
 

 27. 
What is the mode of 5, 10, 13, 12, and 8?
a.
10
c.
13
b.
12
d.
There is no mode.
 

 28. 
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.
 

 29. 
What is the mode of 23, 21, 23, 45, 43, and 21?
a.
21
c.
both a and b
b.
23
d.
There is no mode.
 

 30. 
What is the mode of 4, 7, 6, 2, 1, 3, and 9?
a.
4
c.
7
b.
6
d.
There is no mode.
 



 
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