Name: 
 

Lesson 4: Exploring Statistics


 1. 
Use the following information to answer the questions below.

Ribbon Colour
Length (cm)
Blue
32
Red
82
Green
45
Yellow
99
Purple
102
Pink
15
Black
75
White
15
Grey
75
Gold
2
Brown
75
Silver
15

What is the range of the data?
a.
2-102
b.
15-75
c.
99-102
d.
15-102
 

 2. 
What is the mode of the data?
a.
15 and 75
b.
82
c.
15
d.
32 and 72
 

 3. 
What is the median of the data?
a.
45
b.
60
c.
75
d.
82
 

 4. 
What is the mean of the data?
a.
52.7
b.
56
c.
62.7
d.
58.5
 

 5. 
Scott earned the following test scores in Math this term.

66%            89%            90%            89%            44%            56%

What is the range of his test scores?
a.
44-90
b.
89
c.
56-90
d.
44-89
 

 6. 
What is the mean of his test scores?
a.
72.3
b.
73.3
c.
76.5
d.
77.8
 

 7. 
Which test score lowered Scott’s mean score?
a.
44%
b.
56%
c.
60%
d.
89%
 

 8. 
What is the mode of Scott’s test scores?
a.
89
b.
90
c.
60
d.
75
 

 9. 
Which one of these would be the best for Scott to take as his final grade?
a.
mean
c.
median
b.
mode
d.
none of the above
 



 
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