Construct a dotplot for the given data.
156)
A store manager counts the number of customers who make a purchase in his store each day. The
data are as follows.
10 11 814 710 10 11 8 7
510 15
156)
A)
510 15
B)
510 15
C)
510 15
D)
510 15
Tell whether the statement is true or false.
157)
A variable which can take any real–number value in the interval [ 0, 1 ] is a continuous variable.
157)
A)
True
B)
False
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.
158)
Given that 400 people were aged between 25 and 40, approximately how many had a systolic blood
pressure reading of 140 or higher?
158)
A)
32
B)
8
C)
11
D)
44
Construct a dotplot for the given data.
159)
Attendance records at a school show the number of days each student was absent during the year.
The days absent for each student were as follows.
9 3 4 2 8 6 3 4 0 6 7 3 4 2 2
159)
A)
B)
C)
D)
Tell whether the statement is true or false.
160)
A person’s blood type can be classified as A, B, AB, or O. In this example, “blood type” is the
variable while A, B, AB, O constitute the data.
160)
A)
True
B)
False
161)
A discrete variable can only yield whole–number values.
161)
A)
True
B)
False
A graphical display of a data set is given. State whether the distribution is (roughly) symmetric, right skewed, or left
skewed.
162)
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
162)
A)
Left skewed
B)
Symmetric
C)
Right skewed
Construct the requested graph.
163)
The table lists the winners of the State Tennis Tournament women’s singles title for the years
1986–2005. Construct a bar graph for the given relative frequencies.
Winner Frequency Relative
frequency
C. Evert 20.10
V. Wade 10.05
M. Navratilova 90.45
C. Martinez 10.05
S. Graf 60.30
E. Goolagong 10.05
163)
83
A)
B)
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.
164)
What common class width was used to construct the frequency distribution?
164)
A)
9
B)
10
C)
11
D)
100
Classify the data as either qualitative or quantitative.
165)
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
What kind of data is provided by the information in the second column?
165)
A)
Qualitative
B)
Quantitative
Use single–value grouping to organize these data into a frequency distribution.
166)
A teacher asked each of her students how many novels they had read in the previous six months.
The results are shown below.
0 1 5 4 2 1 3 2
2 7 2 5 0 1 0 1
1 2 6 0 2 3 1 2
7 1 4 2 3 1 7 0
0 2 1 1 0 6 1 7
Construct a frequency distribution for the number of novels read.
166)
A)
Number of
novels Frequency
111
2 9
3 3
4 2
5 2
6 2
7 4
B)
Number of
novels Frequency
0 7
111
2 9
3 3
4 2
5 2
6 2
7 4
C)
Number of
novels Frequency
0 7
110
2 9
3 3
4 2
5 2
6 2
7 3
D)
Number of
novels Frequency
0 7
111
2 9
3–5 7
6–8 6
Classify the data as either discrete or continuous.
167)
The total number of phone calls a sales representative makes in a month is 425.
167)
A)
Discrete
B)
Continuous
Construct a pie chart representing the given data set.
168)
The data below represent the results of a poll in which the the following question was asked: “To
what degree are you satisfied with the outcome of the 2006 mayoral election?”
Very 17%
Somewhat 22%
Not at All 39%
No opinion 22%
168)
A)
B)
Classify the data as either qualitative or quantitative.
169)
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
What kind of data is provided by the information in the first column?
169)
A)
Qualitative
B)
Quantitative
A graphical display of a data set is given. State whether the distribution is (roughly) symmetric, right skewed, or left
skewed.
170)
The dotplot shows heights of football players.
170)
A)
Left skewed
B)
Right skewed
C)
Symmetric
Classify the data as either qualitative or quantitative.
171)
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
What kind of data is provided by the information in the third column?
171)
A)
Qualitative
B)
Quantitative
172)
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 second column?
172)
A)
Qualitative
B)
Quantitative
Complete the contingency table and use it to solve the problem.
173)
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 16 7 5
Female 4 4 4
Total
What is the relative frequency for males ?
173)
A)
7
5
B)
13
20
C)
3
5
D)
7
10
Answer Key
Testname: C2
90
Answer Key
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91
Answer Key
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92
Answer Key
Testname: C2
93
Answer Key
Testname: C2
94
Answer Key
Testname: C2
95
Answer Key
Testname: C2
96
Answer Key
Testname: C2
97
Answer Key
Testname: C2
Answer Key
Testname: C2
Answer Key
Testname: C2
100