Construct a dotplot for the given data.
77)
The frequency chart shows the distribution of defects for the machines used to produce a product.
Defects Frequency
0 1
1 3
2 0
3 2
4 4
5 0
77)
A)
B)
C)
D)
A graphical display of a data set is given. Identify the overall shape of the distribution as (roughly) bell–shaped,
triangular, uniform, reverse J–shaped, J–shaped, right skewed, left skewed, bimodal, or multimodal.
78)
A stem–and–leaf diagram is given below for the number of vacation days taken in 2006 by the
employees of an electronics company.
0
1
2
3
4
4 0 1 3 6 3 5 8 4 3 6 8 0 0 2
1 4 2 5 1 4 0 3 0 1 0
0 2 0 3 4
0 1
3
78)
A)
Left skewed
B)
Right skewed
C)
Reverse J–shaped
D)
J–shaped
C
C
A nurse measured the blood pressure of each person who visited her clinic. Following is a relative–frequency histogram
for the systolic blood pressure readings for those people aged between 25 and 40. Use the histogram to answer the
question. The blood pressure readings were given to the nearest whole number.
79)
Approximately what percentage of the people aged 25–40 had a systolic blood pressure reading
between 110 and 139 inclusive?
79)
A)
59%
B)
89%
C)
39%
D)
74%
Identify the variable.
80)
The following table gives the top five movies at the box office this week.
Rank Last week Movie title Studio Box office sales ($ millions)
1N/A Pirate Adventure Movie Giant 35.2
2 2 Secret Agent Files G.M.G. 19.5
3 1 Epic Super Hero Team 21st Century 14.3
4 5 Reptile Ride Movie Giant 10.1
5 4 Must Love Cats Dreamboat 9.9
Identify the variable under consideration in the fourth column?
80)
A)
rank
B)
studio name
C)
movie title
D)
box office sales
Complete the contingency table and use it to solve the problem.
81)
The partially filled contingency table gives the relative frequencies of the data on age (in years) and
sex from the residents of a retirement home.
Age (yrs)
60–69 70–79 Over 79 Total
Male 0.18 0.1 0.12
Female 0.2 0.1 0.3
Total 1
What percentage of residents are males in the age group 60–79?
81)
A)
30%
B)
29.5%
C)
27%
D)
28%
82)
The partially filled contingency table gives the relative frequencies of the data on age (in years) and
sex from the residents of a retirement home.
Age (yrs)
60–69 70–79 Over 79 Total
Male 0.21 0.1 0.09
Female 0.2 0.1 0.3
Total 1
What percentage of residents are females in the age group 70–79?
82)
A)
10%
B)
8%
C)
9.5%
D)
12%
Classify the data as either discrete or continuous.
83)
The following table shows the heights of the five tallest mountains in North America.
Mountain Height (ft) Rank
McKinley 20,320 1
Logan 19,850 2
Citlaltepec 18,700 3
St. Elias 18,008 4
Popocatepetl 17,930 5
What kind of data is given in the second column of the table?
83)
A)
Discrete
B)
Continuous
Complete the contingency table and use it to solve the problem.
84)
The partially filled contingency table gives the frequencies of the data on age (in years) and sex
from the residents of a retirement home.
Age (yrs)
60–69 70–79 Over 79 Total
Male 1 9 5
Female 19 2 4
Total
What is the relative frequency for persons in the age group 60–69 ?
84)
A)
1
4
B)
1
3
C)
1
2
D)
2
3
Construct a stem–and–leaf diagram for the given data.
85)
The normal monthly precipitation (in inches) for August is listed for 39 different U.S. cities.
Construct an ordered stem–and–leaf diagram using two lines per stem.
3.5 1.6 2.4 3.7 4.1 3.9 1.0 3.6 1.7 0.4 3.2 4.2 4.1
4.2 3.4 3.7 2.2 1.5 4.2 3.4 2.7 4.0 2.0 0.8 3.6 3.7
0.4 3.7 2.0 3.6 3.8 1.2 4.0 3.1 0.5 3.9 0.1 3.5 3.4
85)
A)
0.
0.
1.
1.
2.
2.
3.
3.
4.
0 1 4 4
5 8
0 2
5 6 7
0 0 2 4
7 7 7
1 2 4 4 4
5 5 6 6 6 7 7 8 9
0 0 1 1 2 2 2
B)
0.
0.
1.
1.
2.
2.
3.
3.
4.
1 4 4
5 8
0 2
5 6 7
0 0 2 4
7
1 2 4 4 4
5 5 6 6 6 7 7 7 7 8 9 9
0 0 1 1 2 2 2
86)
The diastolic blood pressures for a sample of patients at a clinic were as follows. The measurements
are in mmHg.
78 87 91 85 97 102 73 90 110 105
94 85 81 95 77 106 84 111 83 92
79 81 96 88 100 85 89 101 83 120
88 95 78 74 105 85 87 92 114 83
86)
A)
7
8
9
10
8 3 7 9 8 4
7 5 5 1 4 3 1 8 5 9 3 8 5 7 3
1 7 0 4 5 2 6 5 2
2 0 5 6 1 0 1 5 4
B)
7
8
9
10
11
12
8 3 7 9 8 4
7 5 5 1 4 3 1 8 5 9 3 8 5 7 3
1 7 0 4 5 2 6 5 2
2 5 6 0 1 5
0 1 4
0
Construct a frequency distribution for the given qualitative data.
87)
The table shows the country represented by the winner of the 10,000 meter run in the Summer
Olympic Games in various years.
Year Country
1912 Finland
1920 Finland
1924 Finland
1928 Finland
1932 Poland
1936 Finland
1948 Czechoslovakia
1952 Czechoslovakia
1956 USSR
1960 USSR
1964 United States
1968 Kenya
1972 Finland
1976 Finland
1980 Ethiopia
1984 Italy
1988 Morocco
1992 Morocco
87)
A)
Country Frequency
Finland 7
Poland 1
Czechoslovakia 2
USSR 2
United States 1
Kenya 1
France 1
Ethiopia 1
Italy 1
Morocco 2
B)
Country Frequency
Finland 7
Poland 1
Czechoslovakia 2
USSR 2
United States 1
Kenya 1
Ethiopia 1
Italy 1
Morocco 2
45
C)
Country Frequency
Finland 7
Poland 1
Czechoslovakia 2
USSR 2
United States 1
Ethiopia 1
Italy 1
Morocco 2
D)
Country Frequency
Finland 6
Poland 1
Czechoslovakia 2
USSR 2
United States 1
Kenya 1
Ethiopia 1
Italy 1
Morocco 2
Provide an appropriate response.
88)
The data in the following table show the results of a survey of college students asking which
vacation destination they would choose given the eight choices shown. Determine the value that
should be entered in the relative frequency column for Mexico.
Destination Frequency Relative frequency
Florida 26
Mexico 95
Belize 18
Puerto Rico 21
Alaska 6
California 20
Colorado 8
Arizona 6
88)
A)
0.95
B)
0.475
C)
0.0475
D)
95
Identify the variable.
89)
For the year 2006 , a large record company reported the following sales figures for various music
media.
Media Sales ($ millions)
CD 1477.3
CD single 1.8
MP3 65.9
Vinyl 2.6
Music video 531.4
Mini Disc 0.3
DVD 108.2
Cassette 3.4
Identify the variable under consideration in the first column?
89)
A)
CD
B)
media type
C)
sales
D)
1477.3
Provide the requested response.
90)
The table contains data from a study of daily study time for 40 students from Statistics 101.
Construct an ogive from the data.
Minutes on
homework
Number of
students
Relative
frequency
Cumulative
relative frequency
0–under 15 20.05 0.05
15–under 30 40.10 0.15
30–under 45 80.20 0.35
45–under 60 18 0.45 0.80
60–under 75 40.10 0.90
75–under 90 40.10 1.00
90)
A)
47
B)
C)
D)
The table does not contain enough information to construct an ogive.
Complete the contingency table and use it to solve the problem.
91)
The partially filled contingency table gives the frequencies of the data on age (in years) and sex
from the residents of a retirement home.
Age (yrs)
60–69 70–79 Over 79 Total
Male 11 10 5
Female 9 1 4
Total
What percentage of residents are males in the age group 60–69 ?
91)
A)
27.6%
B)
28%
C)
27.3%
D)
27.5%
A graphical display of a data set is given. State whether the distribution is (roughly) symmetric, right skewed, or left
skewed.
92)
A stem–and–leaf diagram is given below for the ages of the patients at a hospital.
0
1
2
3
4
5
6
7
8
9
4 0
1 4 2
0 2 0 3
0 1 5 8 2 9
3 4 5 1 7 1 8 2
3 6 2 6 8 9 3 3 0 6 3 6 3
6 2 8 1 8 3 3 6 2 6 9 0 5 0 3 6 7 5
2 5 3 7 8 9 5 3 6 7 8 4 8 9 3 6 7 8 5 5
4 6 0 8 5 3 2 6 2 7 8 9 0
1 4 6 7 3
92)
A)
Symmetric
B)
Right skewed
C)
Left skewed
Provide the requested response.
93)
The table contains data from a study of daily study time for 40 students from Statistics 101. In
constructing an ogive from the data, what quantity should be assigned to each axis.
Minutes on
homework
Number of
students
Relative
frequency
Cumulative
relative frequency
0–under 15 20.05 0.05
15–under 30 40.10 0.15
30–under 45 80.20 0.35
45–under 60 18 0.45 0.80
60–under 75 40.10 0.90
75–under 90 40.10 1.00
93)
A)
There is not enough data to decide.
B)
Number of students on the x–axis and cumulative relative frequency on the y–axis
C)
Minutes on homework on the x–axis and relative frequency on the y–axis
D)
Minutes on homework on the x–axis and cumulative relative frequency on the y–axis
A nurse measured the blood pressure of each person who visited her clinic. Following is a relative–frequency histogram
for the systolic blood pressure readings for those people aged between 25 and 40. Use the histogram to answer the
question. The blood pressure readings were given to the nearest whole number.
94)
Identify the midpoint of the third class.
94)
A)
124
B)
125
C)
130
D)
120
Tell whether the statement is true or false.
95)
A variable whose possible values are 1.15, 1.20, 1.25, 1.30, 1.35, 1.40, 1.45, 1.50, 1.55, 1.60, is a
continuous variable.
95)
A)
True
B)
False
Construct a stem–and–leaf diagram for the given data.
96)
The average weekly temperatures (in degrees Fahrenheit) in Orlando, Florida over a 6–month span
are given below. Round each observation to the nearest degree and then construct a stem–and–leaf
diagram of the rounded data using two lines per stem.
73.2 81.3 75.5 90.7 94.7 88.3
71.8 84.8 84.7 76.5 93.4 79.0
84.3 83.0 88.9 84.4 74.6 86.6
89.3 77.2 78.9 87.3 83.1 70.4
96)
A)
7
7
8
8
9
9
0 2 3
5 6 7 7 9 9
1 3 3 4 4
5 5 7 7 8 9 9
1 3
5
B)
7
7
8
8
9
9
0 1 3 4
5 6 7 8 9
1 3 3 4 4 4 4
6 7 8 8 9
0 3 4
A nurse measured the blood pressure of each person who visited her clinic. Following is a relative–frequency histogram
for the systolic blood pressure readings for those people aged between 25 and 40. Use the histogram to answer the
question. The blood pressure readings were given to the nearest whole number.
97)
Approximately what percentage of the people aged 25–40 had a systolic blood pressure reading
greater than or equal to 130?
97)
A)
26%
B)
74%
C)
15%
D)
23%
Construct the requested graph.
51
98)
Construct a bar graph for the relative frequencies given.
Blood Frequency Relative
type frequency
O22 0.44
A19 0.38
B 6 0.12
AB 30.06
98)
A)
B)
C)
A graphical display of a data set is given. State whether the distribution is (roughly) symmetric, right skewed, or left
skewed.
99)
A frequency histogram is given below for the weights of a sample of college students.
99)
A)
Left skewed
B)
Right skewed
C)
Symmetric
Tell whether the statement is true or false.
100)
The possible values of a discrete variable always form a finite set.
100)
A)
True
B)
False
Construct a stem–and–leaf diagram for the given data.
101)
The weights of 22 members of the varsity football team are listed below.
144 152 142 151 160 152 131 164 141 153 140
144 175 156 147 133 172 159 135 159 148 171
101)
A)
13
14
15
16
17
1 3 5
1 2 2 3 6 9 9
0 1 2 4 4 7 8
0 4
1 2 5
B)
13
14
15
16
17
1 3 5
4 2 1 4 7 8 0
2 1 2 3 6 9 9
0 4
5 2 1
B)
C)
Classify the data as either qualitative or quantitative.
102)
The following table shows the average weight of offensive linemen for each given football team.
Team Average weight (pounds)
Gators 303.52
Lakers 326.78
Eagles 290.61
Pioneers 321.96
Lions 297.35
Mustangs 302.49
Rams 345.88
Buffalos 329.24
What kind of data is provided by the information in the first column?
102)
A)
Qualitative
B)
Quantitative
Provide the requested table entry.
103)
The data in the following table reflect the amount of time 40 students in a section of Statistics 101
spend on homework each day. Determine the value that should be entered in the relative frequency
column for the class 45–59.
Homework time
(minutes)
Number of
students
Relative
frequency
0–14 2
15–29 4
30–44 10
45–59 16
60–74 6
75–89 2
103)
A)
16
B)
40%
C)
0.4
D)
16%
Construct a stem–and–leaf diagram for the given data.
104)
The maximum recorded temperatures (in degrees Fahrenheit) for 35 different U.S. cities are given
below.
108 125 119 109 112 104 118
110 115 113 108 116 105 113
120 111 114 106 112 119 107
110 112 104 121 106 108 123
105 117 124 115 110 114 113
Construct a stem–and–leaf diagram using two lines per stem.
104)
A)
10
10
11
11
12
4 4 5 5
8 9 8 6 7 6 8
2 0 3 3 1 4 2 0 2 0 4 3 5
9 8 6 9 7
0 1 3 4 5
B)
10
10
11
11
12
12
4 4
8 9 8 5 6 7 6 8 5
2 0 3 3 1 4 2 0 2 0 4 3
9 8 5 6 9 7 5
0 1 3 4
5
A graphical display of a data set is given. State whether the distribution is (roughly) symmetric, right skewed, or left
skewed.
105)
A die was rolled 200 times and a record was kept of the numbers obtained. The results are shown
in the relative frequency histogram below.
105)
A)
Left skewed
B)
Right skewed
C)
Symmetric
Construct a stem–and–leaf diagram for the given data.
106)
The attendance counts for this season‘s basketball games are listed below.
227 239 215 219
221 233 229 233
235 228 245 231
106)
A)
21
22
23
24
5 7 9
1 8 9
1 3 3 5 9
5
B)
21
22
23
24
5 9
7 1 9 8
9 3 3 5 1
5
107)
The following data show the number of laps run by each participant in a marathon.
46 65 55 43 51 48
57 30 43 49 32 56
107)
A)
3
4
4
6
0 2
3 6 8 9
1 3 5 6 7
5
B)
3
4
5
6
0 2
6 3 8 3 9
5 1 7 6
5
Construct a pie chart representing the given data set.
108)
The following figures give the distribution of land (in acres) for a county containing 70,000 acres.
Land Use Acres Relative Frequency
Forest 10,500 0.15
Farm 7000 0.10
Urban 52,500 0.75
108)
A)
B)
A nurse measured the blood pressure of each person who visited her clinic. Following is a relative–frequency histogram
for the systolic blood pressure readings for those people aged between 25 and 40. Use the histogram to answer the
question. The blood pressure readings were given to the nearest whole number.
109)
Given that 900 people were aged between 25 and 40, approximately how many had a systolic blood
pressure reading less than 130?
109)
A)
216
B)
666
C)
67
D)
74
Tell whether the statement is true or false.
110)
A variable whose values are observed by counting something must be a discrete variable.
110)
A)
True
B)
False
Identify the variable.
111)
The following table shows the average weight of offensive linemen for each given football team.
Team Average weight (pounds)
Gators 303.52
Lakers 326.78
Eagles 290.61
Pioneers 321.96
Lions 297.35
Mustangs 302.49
Rams 345.88
Buffalos 329.24
Identify the variable under consideration in the second column?
111)
A)
team name
B)
Gators
C)
pounds
D)
average weight of offensive linemen
A nurse measured the blood pressure of each person who visited her clinic. Following is a relative–frequency histogram
for the systolic blood pressure readings for those people aged between 25 and 40. Use the histogram to answer the
question. The blood pressure readings were given to the nearest whole number.
112)
Approximately what percentage of the people aged 25–40 had a systolic blood pressure reading
between 110 and 119 inclusive?
112)
A)
3.5%
B)
0.35%
C)
35%
D)
30%
A graphical display of a data set is given. Identify the overall shape of the distribution as (roughly) bell–shaped,
triangular, uniform, reverse J–shaped, J–shaped, right skewed, left skewed, bimodal, or multimodal.
113)
The dotplot shows heights of wrestlers.
113)
A)
Reverse J–shaped
B)
J–shaped
C)
Left skewed
D)
Right skewed
Complete the contingency table and use it to solve the problem.
114)
The partially filled contingency table gives the frequencies of the data on age (in years) and sex
from the residents of a retirement home.
Age (yrs)
60–69 70–79 Over 79 Total
Male 18 2 5
Female 2 9 4
Total
What is the relative frequency for males in the age group 60–69?
114)
A)
21
40
B)
17
40
C)
9
20
D)
9
10
C
Classify the data as either discrete or continuous.
115)
The average height of all freshmen entering college in a certain year is 68.4 inches.
115)
A)
Discrete
B)
Continuous
B
D