Name: 
 

Measures of Central Tendency Quiz


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

 1. 
A teacher asks her class of 23 students, “What is your age?” Their responses are shown below.
15, 17, 17, 16, 15, 16, 15, 16, 17, 19, 15, 17, 17, 16, 17, 14, 16, 19, 16, 15, 15, 16, 16
Find the mean, median, and mode for the data. If necessary, round to the nearest tenth.
a.
16.2; 17; 16
c.
16.6; 16; 17
b.
16.2; 16; 16
d.
16.6; 17; 17
 

 2. 
Ms. Farquand recorded the number of sick days taken last year by each of her employees, as shown in the table.

EmployeeNumber of Sick Days
Earl
2
Chantal
1
Sarita
5
Ryan
0
Simone
9
Davin
6
Javier
7
Marty
4
Martina
3

Find the mean number of days employees were sick. If necessary, round your answer to the nearest hundredth.
a.
4.11
b.
2.44
c.
3.78
d.
3.44
 

 3. 
A shop owner wants to market a new vest. The vest distributor will charge a reduced price for one size of the owner’s choice. The owner knows that the size selected should be the mode of the sizes the shop sells. In one typical day, the shop owner sold the following sizes of vests:

40, 41, 41, 44, 41, 37, 38, 42, 41, 39, 41, 39, 37, 41, 42

Find the mode of the sizes.
a.
43
b.
41
c.
40.3
d.
39
 

 4. 
Find the mode and the median of the data in the stem-and-leaf plot below.
mc004-1.jpg
Key: 6 | 3 means 63
a.
no mode; 73
c.
63; 73
b.
no mode; 72
d.
82; 72
 

 5. 
What was the daily average (mean) number of lunches sold during the week?
mc005-1.jpg
a.
240
b.
270
c.
290
d.
350
 



 
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