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Chapter 10 - Assessment

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 
 
Choose the most appropriate measures to describe the center and the variation. Find the measures you chose.
 

 1. 

Campground Fees
mc001-1.jpg
a.
median and IQR:
median: 18
IQR: 4
c.
mean and MAD;
mean: 18
MAD: 1.5
b.
mean and MAD;
mean: 18
MAD: 4
d.
median and IQR:
median: 20
IQR: 16
 

 2. 

Monthly Precipitation
mc002-1.jpg
a.
median and IQR:
median: 2
IQR: 2
c.
mean and MAD;
mean: 2
MAD: 0.4
b.
median and IQR:
median: 1
IQR: 0.8
d.
mean and MAD;
mean: 2
MAD: 0.8
 

 3. 
Describe the shape of the distribution.
Food Drive Collections
mc003-1.jpg
a.
symmetric
c.
skewed right
b.
even distribution
d.
skewed left
 

Short Answer
 
 
Make a stem-and-leaf plot of the data.
 

 1. 

Points Scored
87
117
98
79
73
88
97
97
110
76
103
104
 

 2. 

Richter Magnitudes
4.7
5.2
7.1
4.5
7.1
7.4
7.0
4.7
8.0
4.5
6.6
8.7
 
 
Display the data in a histogram.
 

 3. 

Hair Length
Inches
Frequency
0-2
8
3-5
5
6-8
2
9-11
4
12-14
7
 

 4. 

Playoff Base Hits
Hits
Frequency
4-8
17
9-13
16
14-18
19
19-23
17
 
 
Make a box-and-whisker plot for the data.
 

 5. 
Distance (in miles) to the nearest town: 7, 16, 12, 30, 21, 12, 16, 21
 

 6. 
The double box-and-whisker plot compares the battery life (in hours) of two brands of laptops.
a.   What is the range of the upper 75% of each brand?
b.   Which brand has a longer battery life? Explain.

sa006-1.jpg
sa006-2.jpg Battery Life (hours)
 

Other
 

 1. 
Extended Response  The stem-and-leaf plot shows the cost of 12 video games.
Cost of Video Games
Stem
Leaf
1
3
2
 
3
0  6 
4
0  1  2  6 
5
0  2  4  5 
6
9 
 Key: 4|0 = $40
a.   How many video games cost more than $47?
b.   Find the mean, median, and range of the data.
c.   Describe the distribution of the data.
d.   Which data value is the outlier? Describe how the outlier affects the mean.
 



 
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