Name: 
 

Quiz 7.1-7.2



Multiple Choice
Identify the choice that best completes the statement or answers the question.
 
 
Find the value of x.
 

 1. 

Mean is 7; 9, 7, 6, 3, 9, x
a.
7.5
c.
9
b.
14
d.
8
 

 2. 

Median is 18; 14, 15, x, 19, 22, 29
a.
15
c.
17
b.
9
d.
18
 

Numeric Response
 
 
Find the value of x.
 

 1. 

Mean is 0; –11.5, –6, 4, 6.5, x

 

 2. 

Median is 43; 34, 36, x, 68

 

Short Answer
 
 
Find the mean, median, and mode of the data.
 

 1. 


Golf Scores
–1
5
5
3
4
1
2
–2
2
–1
1
5
 

 2. 

The table shows the lengths of eight salamanders in your science class. Find the mean, median, and mode of the lengths.

Length (centimeters)
3.25
3.65
5
3.65
3.7
3.4
4.35
4.2
 

 3. 

The bar graph shows the amount of time you spend online for five days.
sa003-1.jpg
a.  Identify the outlier.
b.  Which measure of central tendency will be most affected by removing the outlier?
 
 
Make a box-and-whisker plot for the data.
 

 4. 

Hours spent on homework in a week: 7, 9, 1, 7, 5, 9, 14, 6, 13, 3
 

 5. 

Lengths (in inches) of dogs: 16, 28, 21, 7, 11, 21, 16, 11
 

 6. 

The table shows the lengths of 12 frogs. Make a box-and-whisker plot for the data. What does the box-and-whisker plot tell you about the data?

Length (cm)
6.4
4.3
4.3
6.9
4.6
7.4
5.8
5.8
6.4
6.4
4.6
5.8
 



 
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