Question 1

Find the original data from the stem-and-leaf plot.
-$$\begin{array} { r | c } 
\text { Stem } & \text { Leaves } \
\hline 25 & 5094 \
26 & 112172 \
27 & 5094
\end{array}$$

Accepted Answer

A) 2550, 2594, 2611, 2621, 2672, 2750, 2794 
B) 75, 119, 37, 47, 98, 77, 121 
C) 75, 119, 47, 47, 98, 77, 121 
D) 2550, 2551, 2612, 2621, 2672, 2750, 2795 
A) 2550, 2594, 2611, 2621, 2672, 2750, 2794 
B) 75, 119, 37, 47, 98, 77, 121 
C) 75, 119, 47, 47, 98, 77, 121 
D) 2550, 2551, 2612, 2621, 2672, 2750, 2795

Question 2

Use the circle graph to solve the problem.
-The pie chart below gives the number of students in the residence halls at the state university.   Which residence hall has the third highest number of students?

Accepted Answer

A) Dodge 
B) Adams 
C) Carver 
D) Fisher 
A) Dodge 
B) Adams 
C) Carver 
D) Fisher

Question 3

Solve the problem.
-At the National Criminologists Association's annual convention, participants filled out a questionnaire asking what they thought was the most important cause for criminal behavior. The tally was as follows. $$\begin{array} { r | r } 
\text { Cause } & \text { Frequency } \
\hline \text { education } & 19.5 \
\text { drugs } & 58.5 \
\text { family } & 39 \
\text { poverty } & 68.25 \
\text { other } & 9.75
\end{array}$$ Make a Pareto chart to display these findings.

Accepted Answer

A)   
B)   
C)   
D)   
A)   
B)   
C)   
D)

Question 4

Construct a boxplot for the given data. Include values of the 5-number summary in all boxplots.
-Using the information in the table on home sale prices in the city of Summerhill for the month of June, find the class boundaries for class 80.0-110.9. $$\begin{array} { c | c } 
 \text {Class Limits}& \text {Frequency}\
 \text {(Sale price in thousands)}& \text {(No. of homes sold)}\
\hline 80.0 - 110.9 & 2 \
111.0 - 141.9 & 5 \
142.0 - 172.9 & 7 \
173.0 - 203.9 & 10 \
204.0 - 234.9 & 3 \
235.0 - 265.9 & 1
\end{array}$$

Accepted Answer

A) 79.90, 110.95 
B) 80.00, 110.95 
C) 79.95, 110.95 
D) 79.90, 111.0 
A) 79.90, 110.95 
B) 80.00, 110.95 
C) 79.95, 110.95 
D) 79.90, 111.0

Question 5

Construct the relative frequency distribution that corresponds to the given frequency distribution.
-$\begin{array}{c|c}
\begin{array}{r}
\text { Days of } \
\text { vacation }
\end{array} & \text { Frequency } \
\hline 0-1 & 19 \
2-3 & 20 \
4-5 & 16 \
6-7 & 22 \
8-9 & 23
\end{array}$

Accepted Answer

A) 
$\begin{array}{c|c}
\begin{array}{r}
\text { Days of } \
\text { vacation }
\end{array} & \begin{array}{c}
\text { Cumulative } \
\text { Frequency }
\end{array} \
\hline 0-1 & 0.19 \
2-3 & 0.2 \
4-5 & 0.16 \
6-7 & 0.22 \
8-9 & 0.23
\end{array}$ 
B) 
$\begin{array}{c|c}
\begin{array}{c}
\text { Days of } \
\text { vacation }
\end{array} & \begin{array}{c}
\text { Cumulative } \
\text { Frequency }
\end{array} \
\hline 0-1 & 19 \
2-3 & 39 \
4-5 & 56 \
6-7 & 78 \
8-9 & 100
\end{array}$ 
C) 
$\begin{array}{c|c}
\begin{array}{c}
\text { Days of } \
\text { vacation }
\end{array} & \begin{array}{c}
\text { Cumulative } \
\text { Frequency }
\end{array} \
\hline 0-1 & 39 \
2-3 & 55 \
4-5 & 77 \
6-7 & 100 \
8-9 & 123
\end{array}$ 
D) 
$\begin{array}{c|c}
\begin{array}{r}
\text { Days of } \
\text { vacation }
\end{array} & \begin{array}{c}
\text { Cumulative } \
\text { Frequency }
\end{array} \
\hline 0-1 & 19 \
2-3 & 39 \
4-5 & 55 \
6-7 & 77 \
8-9 & 100
\end{array}$ 
A) 
$\begin{array}{c|c}
\begin{array}{r}
\text { Days of } \
\text { vacation }
\end{array} & \begin{array}{c}
\text { Cumulative } \
\text { Frequency }
\end{array} \
\hline 0-1 & 0.19 \
2-3 & 0.2 \
4-5 & 0.16 \
6-7 & 0.22 \
8-9 & 0.23
\end{array}$ 
B) 
$\begin{array}{c|c}
\begin{array}{c}
\text { Days of } \
\text { vacation }
\end{array} & \begin{array}{c}
\text { Cumulative } \
\text { Frequency }
\end{array} \
\hline 0-1 & 19 \
2-3 & 39 \
4-5 & 56 \
6-7 & 78 \
8-9 & 100
\end{array}$ 
C) 
$\begin{array}{c|c}
\begin{array}{c}
\text { Days of } \
\text { vacation }
\end{array} & \begin{array}{c}
\text { Cumulative } \
\text { Frequency }
\end{array} \
\hline 0-1 & 39 \
2-3 & 55 \
4-5 & 77 \
6-7 & 100 \
8-9 & 123
\end{array}$ 
D) 
$\begin{array}{c|c}
\begin{array}{r}
\text { Days of } \
\text { vacation }
\end{array} & \begin{array}{c}
\text { Cumulative } \
\text { Frequency }
\end{array} \
\hline 0-1 & 19 \
2-3 & 39 \
4-5 & 55 \
6-7 & 77 \
8-9 & 100
\end{array}$

Question 6

Provide an appropriate response.
-Suppose that a data set has a minimum value of 28 and a max of 73 and that you want 5 classes. Explain how to find the class width for this frequency table. What happens if you mistakenly use a class width of 9 instead of 10?

Accepted Answer

To find the class width for a frequency

Question 7

Construct the dot plot for the given data.
-The following data show the number of laps run by each participant in a marathon. $\begin{array} { l l l l l l l l l l l } 46 & 65 & 43 & 51 & 48 & 57 & 30 & 43 & 49 & 32 & 56 \end{array}$

Accepted Answer

A) 
$\begin{array} { l | l } 
3 & 02 \
4 & 3689 \
4 & 13567 \
6 & 5
\end{array}$ 
B) 
$\begin{array} { l | l } 
3 & 02 \
4 & 33689 \
5 & 1567 \
6 & 5
\end{array}$ 
A) 
$\begin{array} { l | l } 
3 & 02 \
4 & 3689 \
4 & 13567 \
6 & 5
\end{array}$ 
B) 
$\begin{array} { l | l } 
3 & 02 \
4 & 33689 \
5 & 1567 \
6 & 5
\end{array}$

Question 8

Construct the cumulative frequency distribution that corresponds to the given frequency distribution.
-A store manager counts the number of customers who make a purchase in his store each day. The data are as follows. 
$10 11 8 14 7 10 10 11 8 7 $

Accepted Answer

A)   
B)   
C)   
D)   
A)   
B)   
C)   
D)

Question 9

Construct the cumulative frequency distribution that corresponds to the given frequency distribution.
-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. $$\begin{array} { l l l l l l l l l l l l l l } 
02 & 2 & 4 & 2 & 4 & 4 & 7 & 2 & 4 & 6
\end{array}$$

Accepted Answer

A)   
B)   
C)   
D)   
A)   
B)   
C)   
D)

Question 10

Construct the dot plot for the given data.
-The midterm test scores for the seventh-period typing class are listed below. $85 77 93 91 74 65 68 97 88 59 74 83 85 72 63 79$

Accepted Answer

A) $\begin{array}{l|l}
5 & 9 \
6 & 358 \
7 & 3558 \
8 & 24479 \
9 & 137
\end{array}$ 
B) $\begin{array}{l|l}
5 & 9 \
6 & 358 \
7 & 24479 \
8 & 3558 \
9 & 137
\end{array}$ 
A) $\begin{array}{l|l}
5 & 9 \
6 & 358 \
7 & 3558 \
8 & 24479 \
9 & 137
\end{array}$ 
B) $\begin{array}{l|l}
5 & 9 \
6 & 358 \
7 & 24479 \
8 & 3558 \
9 & 137
\end{array}$

Question 11

Provide an appropriate response.
-One purpose of displaying data graphically is to provide clues about trends. The given values are weights (ounces)of steaks listed on a restaurant menu as "20 ounce porterhouse" steaks. The weights are supposed to be 21 ounces because they supposedly lose an ounce when cooked. Create a frequency distribution with 5 classes. Based on your distribution, comment on the advertised "20 ounce" steaks. $17 20 21 18 20 20 20 18 19 19 20 19 21 20 18 20 20 19 18 19$

Accepted Answer

The frequency distribution with 5 classe

Question 12

Solve the problem.
-The following frequency distribution analyzes the scores on a math test. Find the indicated class midpoint or boundaries. 
$$\begin{array} { c c } 
\hline \text {score}& \begin{array} { c } 
\text { Number of } \
\text { Students }
\end{array} \
\hline 40 - 59 & 2 \
60 - 75 & 4 \
76 - 82 & 6 \
83 - 94 & 15 \
95 - 99 & 5
\end{array}$$ The class boundaries of scores interval 40-59

Accepted Answer

A) 39.5, 59.5 
B) 40.5, 59.5 
C) 40.5, 58.5 
D) 39.5, 58.5 
A) 39.5, 59.5 
B) 40.5, 59.5 
C) 40.5, 58.5 
D) 39.5, 58.5

Question 13

Solve the problem.
-The frequency table below shows the amount of weight loss during the first month of a diet program for both males and females. Compare the results and determine whether there appears to be a significant difference between the two genders. $$\begin{array} { c | c c | c } 
\text { Weight (lb) } & \text { Frequency (males) } & \text { Weight (lb) } & \text { Frequency (females) } \
\hline 5 - 7 & 2 & 5 - 7 & 4 \
8 - 10 & 9 & 8 - 10 & 3 \
11 - 13 & 18 & 11 - 13 & 19 \
14 - 16 & 13 & 14 - 16 & 5 \
17 - 19 & 4 & 17 - 19 & 15 \
20 - 22 & 1 & 20 - 22 & 1
\end{array}$$

Accepted Answer

There does not appea

Question 14

Construct the dot plot for the given data.
-The ages of the 45 members of a track and field team are listed below. Construct an expanded stemplot with about 8 rows. $\begin{array} { l l l l l l l l l l l l l l l } 21 & 18 & 42 & 35 & 32 & 21 & 44 & 25 & 38 & 48 & 14 & 19 & 23 & 22 & 28 \end{array}$
$\begin{array} { l l l l l l l l l l l l l l l } 32 & 34 & 27 & 31 & 17 & 16 & 41 & 37 & 22 & 24 & 33 & 32 & 21 & 26 & 30 \end{array}$
$\begin{array} { l l l l l l l l l l l l l l l } 22 & 27 & 32 & 30 & 20 & 18 & 17 & 21 & 15 & 26 & 36 & 31 & 40 & 16 & 25 \end{array}$

Accepted Answer

A) 
$\begin{array}{l|l}
1 & 4 \
1 & 56677889 \
2 & 0111122234 \
2 & 5566778 \
3 & 0011222234 \
3 & 5678 \
4 & 0124 \
4 & 8
\end{array}$ 
B) 
$\begin{array}{l|l}
1 & 45 \
1 & 56677889 \
2 & 011112223455 \
2 & 5566778 \
3 & 00112222345 \
3 & 5678 \
4 & 0124 \
4 & 8
\end{array}$ 
A) 
$\begin{array}{l|l}
1 & 4 \
1 & 56677889 \
2 & 0111122234 \
2 & 5566778 \
3 & 0011222234 \
3 & 5678 \
4 & 0124 \
4 & 8
\end{array}$ 
B) 
$\begin{array}{l|l}
1 & 45 \
1 & 56677889 \
2 & 011112223455 \
2 & 5566778 \
3 & 00112222345 \
3 & 5678 \
4 & 0124 \
4 & 8
\end{array}$

Question 15

Use the given data to construct a frequency distribution.
-On a math test, the scores of 24 students were $\begin{array} { l  } 
99&73&72&66&72&72&99&85&72&65&82&73\73&82&72&73&82&72&73&85&73&82&85&66
\end{array}$
$\text { Construct a frequency table. Use } 4 \text { classes beginning with a lower class limit of } 60 \text {. }$
$\begin{array}{l|l}
\text { Score } & \text { Frequency } \
\hline &\\
\end{array}$

Accepted Answer

The answer of Use the given data to construct a...

Question 16

Construct the cumulative frequency distribution that corresponds to the given frequency distribution.
-The following data represent the number of cars passing through a toll booth during a certain time period over a number of days. $38 39 37 37 44 38 41 38 39 35 42 39 43 37 41$

Accepted Answer

A)   
B)   
C)   
D)   
A)   
B)   
C)   
D)

Question 17

Solve the problem.
-In a survey, 20 people were asked how many magazines they had purchased during the previous year. The results are shown below. Construct a histogram to represent the data. Use 4 classes with a class width of 10, and begin with a lower class limit of -0.5. What is the approximate amount at the center? $$\begin{array} { r r r r r r r r r r } 
6 & 15 & 3 & 36 & 25 & 18 & 12 & 18 & 5 & 30 \
24 & 7 & 0 & 22 & 33 & 24 & 19 & 4 & 12 & 9
\end{array}$$

Accepted Answer

The approximate amou

Question 18

Solve the problem.
-Consider the frequency distribution below, which has single values as classes: $$\begin{array} { c | c } 
\text { Value } & \text { Frequency } \
\hline 10 & 1 \
11 & 3 \
12 & 7 \
13 & 18 \
14 & 10 \
15 & 4 \
16 & 2 \
17 & 7 \
18 & 16 \
19 & 10 \
20 & 6 \
21 & 2
\end{array}$$ Construct a new frequency distribution for this data with 4 classes. Now, construct another frequency distribution for this data with 6 classes. Suppose that you construct a histogram corresponding to the original data and histograms corresponding to each of the new frequency distributions. Describe the shapes of the three histograms. Does the histogram with six classes capture the distribution of the data? Does the histogram with four classes capture the distribution of the data?

Accepted Answer

The data is bimodal because it has two p

Question 19

Construct the relative frequency distribution that corresponds to the given frequency distribution.
-$\begin{array}{r|r}
\text { Speed } & \begin{array}{r}
\text { Number } \
\text { of balls }
\end{array} \
\hline 0-29 & 4 \
30-59 & 16 \
60-89 & 60 \
90-120 & 20
\end{array}$

Accepted Answer

A) 
$\begin{array}{c|c}
\text { Speed } & \begin{array}{c}
\text { Cumulative } \
\text { Frequency }
\end{array} \
\hline 0-29 & .04 \
30-59 & .20 \
60-89 & .80 \
90-120 & 100
\end{array}$ 
B) 
$\begin{array}{r|c}
\text { Speed } & \begin{array}{c}
\text { Cumulative } \
\text { Frequency }
\end{array} \
\hline 0-29 & 100 \
30-59 & 80 \
60-89 & 82 \
90-120 & 4
\end{array}$ 
C) 
$\begin{array}{r|r} 
& \text { Cumulative } \
\text { Speed } & \text { Frequency } \
\hline 0-29 & 4 \
30-59 & 20 \
60-89 & 80 \
90-120 & 100
\end{array}$ 
D) $\text { None of the above }$ 
A) 
$\begin{array}{c|c}
\text { Speed } & \begin{array}{c}
\text { Cumulative } \
\text { Frequency }
\end{array} \
\hline 0-29 & .04 \
30-59 & .20 \
60-89 & .80 \
90-120 & 100
\end{array}$ 
B) 
$\begin{array}{r|c}
\text { Speed } & \begin{array}{c}
\text { Cumulative } \
\text { Frequency }
\end{array} \
\hline 0-29 & 100 \
30-59 & 80 \
60-89 & 82 \
90-120 & 4
\end{array}$ 
C) 
$\begin{array}{r|r} 
& \text { Cumulative } \
\text { Speed } & \text { Frequency } \
\hline 0-29 & 4 \
30-59 & 20 \
60-89 & 80 \
90-120 & 100
\end{array}$ 
D) $\text { None of the above }$

Question 20

Use the data to create a stemplot.
-After reviewing a movie, 800 people rated the movie as excellent, good, or fair. The following data give the rating distribution. $\begin{array}{ccl}
\text { Excellent } & \text { Good } & \text { Fair } \
160 & 400 & 240
\end{array}$

Accepted Answer

A)   
B)   
A)   
B)

Find the original data from the stem-and-leaf plot. - Stem Leaves 25 5094 26 112172 27 5094

Use the circle graph to solve the problem. -The pie chart below gives the number of students in the residence halls at the state university. Which residence hall has the third highest number of students?

Construct the relative frequency distribution that corresponds to the given frequency distribution. - Days of vacation Frequency 0-1 19 2-3 20 4-5 16 6-7 22 8-9 23

Provide an appropriate response. -Suppose that a data set has a minimum value of 28 and a max of 73 and that you want 5 classes. Explain how to find the class width for this frequency table. What happens if you mistakenly use a class width of 9 instead of 10?

Construct the dot plot for the given data. -The following data show the number of laps run by each participant in a marathon. 46 65 43 51 48 57 30 43 49 32 56

Construct the cumulative frequency distribution that corresponds to the given frequency distribution. -A store manager counts the number of customers who make a purchase in his store each day. The data are as follows. $10 11 8 14 7 10 10 11 8 7$

Construct the dot plot for the given data. -The midterm test scores for the seventh-period typing class are listed below. $85 77 93 91 74 65 68 97 88 59 74 83 85 72 63 79$

Solve the problem. -The following frequency distribution analyzes the scores on a math test. Find the indicated class midpoint or boundaries. score Number of Students 40-59 2 60-75 4 76-82 6 83-94 15 95-99 5 The class boundaries of scores interval 40-59

Construct the dot plot for the given data. -The ages of the 45 members of a track and field team are listed below. Construct an expanded stemplot with about 8 rows. 21 18 42 35 32 21 44 25 38 48 14 19 23 22 28 32 34 27 31 17 16 41 37 22 24 33 32 21 26 30 22 27 32 30 20 18 17 21 15 26 36 31 40 16 25

Construct the cumulative frequency distribution that corresponds to the given frequency distribution. -The following data represent the number of cars passing through a toll booth during a certain time period over a number of days. $38 39 37 37 44 38 41 38 39 35 42 39 43 37 41$

Construct the relative frequency distribution that corresponds to the given frequency distribution. - Speed Number of balls 0-29 4 30-59 16 60-89 60 90-120 20

Introduction to Statistics

Statistics for Describing, Exploring, and Comparing Data

Probability

Probability Distributions

Normal Probability Distributions

Estimates and Sample Sizes

Hypothesis Testing

Inferences From Two Samples

Correlation and Regression

Multinomial Experiments and Contingency Tables

Analysis of Variance

Nonparametric Statistics

Statistical Process Control

Filters

Exam 2: Summarizing and Graphing Data

Find the original data from the stem-and-leaf plot. - Stem Leaves 25 5094 26 112172 27 5094

Use the circle graph to solve the problem. -The pie chart below gives the number of students in the residence halls at the state university. Which residence hall has the third highest number of students?

Construct the relative frequency distribution that corresponds to the given frequency distribution. - Days of vacation Frequency 0-1 19 2-3 20 4-5 16 6-7 22 8-9 23

Provide an appropriate response. -Suppose that a data set has a minimum value of 28 and a max of 73 and that you want 5 classes. Explain how to find the class width for this frequency table. What happens if you mistakenly use a class width of 9 instead of 10?

Construct the dot plot for the given data. -The following data show the number of laps run by each participant in a marathon. 46 65 43 51 48 57 30 43 49 32 56

Construct the cumulative frequency distribution that corresponds to the given frequency distribution. -A store manager counts the number of customers who make a purchase in his store each day. The data are as follows. 10&nbsp;11&nbsp;8&nbsp;14&nbsp;7&nbsp;10&nbsp;10&nbsp;11&nbsp;8&nbsp;7

Construct the cumulative frequency distribution that corresponds to the given frequency distribution. -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. 02 2 4 2 4 4 7 2 4 6

Construct the dot plot for the given data. -The midterm test scores for the seventh-period typing class are listed below. 85&nbsp;77&nbsp;93&nbsp;91&nbsp;74&nbsp;65&nbsp;68&nbsp;97&nbsp;88&nbsp;59&nbsp;74&nbsp;83&nbsp;85&nbsp;72&nbsp;63&nbsp;79

Solve the problem. -The following frequency distribution analyzes the scores on a math test. Find the indicated class midpoint or boundaries. score Number of Students 40-59 2 60-75 4 76-82 6 83-94 15 95-99 5 The class boundaries of scores interval 40-59

Construct the dot plot for the given data. -The ages of the 45 members of a track and field team are listed below. Construct an expanded stemplot with about 8 rows. 21 18 42 35 32 21 44 25 38 48 14 19 23 22 28 32 34 27 31 17 16 41 37 22 24 33 32 21 26 30 22 27 32 30 20 18 17 21 15 26 36 31 40 16 25

Construct the relative frequency distribution that corresponds to the given frequency distribution. - Speed Number of balls 0-29 4 30-59 16 60-89 60 90-120 20

Use the data to create a stemplot. -After reviewing a movie, 800 people rated the movie as excellent, good, or fair. The following data give the rating distribution. Excellent Good Fair 160 400 240

Introduction to Statistics

Statistics for Describing, Exploring, and Comparing Data

Probability

Probability Distributions

Normal Probability Distributions

Estimates and Sample Sizes

Hypothesis Testing

Inferences From Two Samples

Correlation and Regression

Multinomial Experiments and Contingency Tables

Analysis of Variance

Nonparametric Statistics

Statistical Process Control

Filters

Construct the cumulative frequency distribution that corresponds to the given frequency distribution. -A store manager counts the number of customers who make a purchase in his store each day. The data are as follows. $10 11 8 14 7 10 10 11 8 7$

Construct the dot plot for the given data. -The midterm test scores for the seventh-period typing class are listed below. $85 77 93 91 74 65 68 97 88 59 74 83 85 72 63 79$