Question 1

Answer the question using the graphical display.  
-Identify the class that has the greatest increase in 2.5 or better GPA's over the five decades.

Accepted Answer

A) Sr 
B) Jr 
C) Fr 
D) So 
A) Sr 
B) Jr 
C) Fr 
D) So

Question 2

Solve the problem.
-Use the high closing values of Naristar Inc. stock from the years 1990 - 2001 to construct a time-series graph.
(Let x = 0 stand for 1990 and so on...)Identify a trend. $$\begin{array} { c | c | c | c } 
\text { Year } & \text { High } & \text { Year } & \text { High } \
\hline 1990 & 42 & 1996 & 47 \
1991 & 40 & 1997 & 60 \
1992 & 31 & 1998 & 61 \
1993 & 42 & 1999 & 57 \
1994 & 44 & 2000 & 54 \
1995 & 47 & 2001 & 30
\end{array}$$

Accepted Answer

@#IMG-DLM& There seems to be a

Question 3

Use the graph to answer the question.
-  
In what quarter was the revenue the greatest for 1999?

Accepted Answer

A) fourth quarter 
B) third quarter 
C) first quarter 
D) second quarter 
A) fourth quarter 
B) third quarter 
C) first quarter 
D) second quarter

Question 4

Solve the problem.
-The following data show the number of laps run by each participant in a marathon.
$\begin{array} { l l l l l l l l l l l l } 46 & 65 & 55 & 43 & 51 & 48 & 57 & 30 & 43 & 49 & 32 & 56 \end{array}$
Use the data to construct a stem-and-leaf plot.

Accepted Answer

A) 
$\begin{array}{l|l}
3 & 02 \
4 & 3689 \
4 & 13567 \
6 & 5
\end{array}$ 
B) 
$\begin{array}{l|l}
3 & 02 \
4 & 3689 \
5 & 13567 \
6 & 5
\end{array}$ 
C) 
$\begin{array}{l|l}
3 & 02 \
4 & 33689 \
5 & 1567 \
6 & 5
\end{array}$ 
D) 
$\begin{array}{l|l}
3 & 02 \
4 & 689 \
5 & 133567 \
6 & 5
\end{array}$ 
A) 
$\begin{array}{l|l}
3 & 02 \
4 & 3689 \
4 & 13567 \
6 & 5
\end{array}$ 
B) 
$\begin{array}{l|l}
3 & 02 \
4 & 3689 \
5 & 13567 \
6 & 5
\end{array}$ 
C) 
$\begin{array}{l|l}
3 & 02 \
4 & 33689 \
5 & 1567 \
6 & 5
\end{array}$ 
D) 
$\begin{array}{l|l}
3 & 02 \
4 & 689 \
5 & 133567 \
6 & 5
\end{array}$

Question 5

Provide an appropriate response.
-Construct a frequency table and the corresponding histogram in which the following conditions are satisfied:
- The frequency for the second class is twice the frequency of the first class
- In the histogram, the area of the bar corresponding to the second class is four times the area of the bar corresponding to the first class

Accepted Answer

Answers will vary. The class w

Question 6

Solve the problem.
-Use the high closing values of Naristar Inc. stock from the years 1992 - 2003 to construct a time-series graph.
(Let x = 0 stand for 1992 and so on...)Identify a trend. $$\begin{array} { c | c | c | c } 
\text { Year } & \text { High } & \text { Year } & \text { High } \
\hline 1992 & 48 & 1998 & 62 \
1993 & 53 & 1999 & 60 \
1994 & 47 & 2000 & 68 \
1995 & 55 & 2001 & 42 \
1996 & 58 & 2002 & 51 \
1997 & 61 & 2003 & 78
\end{array}$$

Accepted Answer

@#IMG-DLM& There seems to be a general u

Question 7

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.  
-Approximately what percentage of the people aged 25-40 had a systolic blood pressure reading greater than or equal to 130?

Accepted Answer

A) 15% 
B) 26% 
C) 23% 
D) 74% 
A) 15% 
B) 26% 
C) 23% 
D) 74%

Question 8

The bar graph below shows the average cost of renting a studio in a certain city in each of the years 2002 through 2006. 
  
By what percentage does the average rental price increase from 2002 to 2003? Obtain a truncated version of the graph by sliding a piece of paper over the bottom portion of the graph so that the scale on the vertical axis starts at 300. In the truncated graph, by what percentage does the price appear to increase from 2002 to 2003? Why is the truncated graph misleading?

Accepted Answer

The average price increases by 25% from

Question 9

Use the graph to answer the question.
- 
 What was the revenue for the first quarter of 1999?

Accepted Answer

A) $7 million 
B) $4 million 
C) $35 million 
D) $20 million 
A) $7 million 
B) $4 million 
C) $35 million 
D) $20 million

Question 10

Construct a line chart for the data.
-The ages of employees of a company are summarized in the frequency table. $$\begin{array} { l | c } 
\text { Age in Years } & \text { Frequency } \
\hline 18 - 24 & 11 \
25 - 31 & 38 \
32 - 38 & 35 \
39 - 45 & 27 \
46 - 52 & 22 \
53 - 59 & 14 \
60 - 66 & 5
\end{array}$$

Accepted Answer

A) 
 
Age (years) 
B)

Age (years) 
C) 
 
Age (years) 
D)  None of the above 
A) 
 
Age (years) 
B)

Age (years) 
C) 
 
Age (years) 
D)  None of the above

Question 11

Provide an appropriate response.
-Suppose that a histogram is constructed for the frequency table shown below:
 $$\begin{array} { c | c } 
\text { Age } & \text { Frequency } \
\hline 30 - 39 & 11 \
40 - 49 & 23 \
50 - 59 & 17 \
60 - 69 & 12 \
70 - 89 & 6
\end{array}$$ 
The class 60-69 has twice the frequency of the class 70-89. In the histogram, will the area of the bar for the class 60-69 be twice the area of the bar for the class 70-89? In other words, will areas be proportional to frequencies in this histogram? Explain your thinking. Are there any conditions under which areas are proportional to frequencies in histograms?

Accepted Answer

The areas of the bars for the two classe

Question 12

A television manufacturer sold three times as many televisions in 2006 as it did in 1996. To illustrate this fact, the manufacturer draws a pictogram as shown below. The television on the right is three times as tall and three times as wide as the television on the left.

Why is this pictogram misleading? What visual impression is portrayed by the pictogram?

Accepted Answer

The area of the television on the right

Question 13

The following data represent the total number of years of formal education for 40 employees of a bank. $\begin{array} { l l l l l l l l l l } 13 & 17 & 13 & 14 & 12 & 17 & 19 & 13 & 15 & 13 \end{array}$
$\begin{array} { l l l l l l l l l l } 16 & 18 & 13 & 11 & 19 & 19 & 12 & 14 & 13 & 13 \end{array}$
$\begin{array} { l l l l l l l l l l } 14 & 15 & 13 & 15 & 17 & 18 & 17 & 14 & 13 & 17 \end{array}$
$\begin{array} { l l l l l l l l l l } 12 & 17 & 17 & 16 & 16 & 17 & 15 & 13 & 13 & 14 \end{array}$ 
Create a frequency table for the number of years of education.

Accepted Answer

A) 
$\begin{array}{r|r}
\begin{array}{r}
\text { Number of } \
\text { years of } \
\text { education }
\end{array} & \text { Frequency } \
\hline 11 & 1 \
12 & 3 \
13 & 11 \
14 & 6 \
15 & 4 \
16 & 3 \
17 & 7 \
18 & 2 \
19 & 3
\end{array}$ 
B)

$\begin{array}{r|r}
\begin{array}{r}
\text { Number of } \
\text { years of } \
\text { education }
\end{array} & \text { Frequency } \
\hline 12 & 3 \
13 & 11 \
14 & 5 \
15 & 4 \
16 & 3 \
17 & 8 \
18 & 2 \
19 & 3
\end{array}$ 
C) 
$\begin{array}{r|r}
\begin{array}{r}
\text { Number of } \
\text { years of } \
\text { education }
\end{array} & \text { Frequency } \
\hline 11 & 1 \
12 & 3 \
13 & 12 \
14 & 5 \
15 & 4 \
16 & 3 \
17 & 8 \
18 & 2 \
19 & 2
\end{array}$ 
D) 
$\begin{array}{r|r}
\begin{array}{r}
\text { Number of } \
\text { years of } \
\text { education }
\end{array} & \text { Frequency } \
\hline 11 & 1 \
12 & 3 \
13 & 11 \
14 & 5 \
15 & 4 \
16 & 3 \
17 & 8 \
18 & 2 \
19 & 3
\end{array}$ 
A) 
$\begin{array}{r|r}
\begin{array}{r}
\text { Number of } \
\text { years of } \
\text { education }
\end{array} & \text { Frequency } \
\hline 11 & 1 \
12 & 3 \
13 & 11 \
14 & 6 \
15 & 4 \
16 & 3 \
17 & 7 \
18 & 2 \
19 & 3
\end{array}$ 
B)

$\begin{array}{r|r}
\begin{array}{r}
\text { Number of } \
\text { years of } \
\text { education }
\end{array} & \text { Frequency } \
\hline 12 & 3 \
13 & 11 \
14 & 5 \
15 & 4 \
16 & 3 \
17 & 8 \
18 & 2 \
19 & 3
\end{array}$ 
C) 
$\begin{array}{r|r}
\begin{array}{r}
\text { Number of } \
\text { years of } \
\text { education }
\end{array} & \text { Frequency } \
\hline 11 & 1 \
12 & 3 \
13 & 12 \
14 & 5 \
15 & 4 \
16 & 3 \
17 & 8 \
18 & 2 \
19 & 2
\end{array}$ 
D) 
$\begin{array}{r|r}
\begin{array}{r}
\text { Number of } \
\text { years of } \
\text { education }
\end{array} & \text { Frequency } \
\hline 11 & 1 \
12 & 3 \
13 & 11 \
14 & 5 \
15 & 4 \
16 & 3 \
17 & 8 \
18 & 2 \
19 & 3
\end{array}$

Question 14

The graph below shows estimated world population for the perio $4000 \mathrm { BC } - 2000$  AD. Note that the
logarithm of the world population and not actual population is plotted on the vertical axis. This means, for example, that when the graph reaches 7 on the vertical scale, world population is \(10 ^ { 7 }\])
and when the graph reaches 9 on the vertical scale, world population is 109. 
  
Why must the graph be interpreted with care? If the graph is not interpreted with care what misleading impression
might one have of world population during the period 4000 BC - 2000 AD? Why do you think that the graph was presented in this form?

Accepted Answer

The graph must be interpreted with care

Question 15

Provide an appropriate response.
-Suppose that you want to construct a graph to represent the following data. 
$$\begin{array} { l | c } 
\text { Blood Type } & \text { Frequency } \
\hline \mathrm { O } & 90 \
\mathrm {~A} & 84 \
\mathrm {~B} & 18 \
\mathrm { AB } & 8
\end{array}$$ 
If you are mostly interested in the number of people in each category as a percentage of the total number of people, would a bar chart or a pie chart be more useful? Explain your thinking.

Accepted Answer

A pie chart would be more useful. A pie

Question 16

Construct a pie chart representing the given data set.
-The following data give the distribution of the types of houses in a town containing 34,000 houses.
 $\begin{array}{r|c|c}
\text { House Type } & \text { Frequency } & \text { Relative Frequency } \
\hline \text { Cape } & 8500 & 0.25 \
\text { Garrison } & 13,600 & 0.35 \
\text { Split } & 11,900 & 0.40
\end{array}$

Accepted Answer

A) 
  
B) 
  
A) 
  
B)

Question 17

Solve the problem.
-The attendance counts for this season's basketball games are listed below.
$\begin{array} { l l l l } 227 & 239 & 215 & 219 \end{array}$
$\begin{array} { l l l l } 221 & 233 & 229 & 233 \end{array}$
$\begin{array} { l l l l } 235 & 228 & 245 & 231 \end{array}$
Use the data to construct a stem-and-leaf plot.

Accepted Answer

A) 
$\begin{array}{l|l}
21 & 579 \
22 & 189 \
23 & 1359 \
24 & 5
\end{array}$ 
B) 
$\begin{array}{l|l}
21 & 59 \
22 & 189 \
23 & 1359 \
24 & 5
\end{array}$ 
C) 
$\begin{array}{l|l}
21 & 59 \
22 & 1789 \
23 & 13359 \
24 & 5
\end{array}$ 
D) 
$\begin{array} { l | l } 
21 & 579 \
22 & 189 \
23 & 13359 \
24 & 5
\end{array}$ 
A) 
$\begin{array}{l|l}
21 & 579 \
22 & 189 \
23 & 1359 \
24 & 5
\end{array}$ 
B) 
$\begin{array}{l|l}
21 & 59 \
22 & 189 \
23 & 1359 \
24 & 5
\end{array}$ 
C) 
$\begin{array}{l|l}
21 & 59 \
22 & 1789 \
23 & 13359 \
24 & 5
\end{array}$ 
D) 
$\begin{array} { l | l } 
21 & 579 \
22 & 189 \
23 & 13359 \
24 & 5
\end{array}$

Question 18

Make a bar graph to represent the data.
-Construct a bar graph for the relative frequencies given.
 $$\begin{array} { l c c } 
\begin{array} { c } 
\text { Blood } \
\text { type }
\end{array} & \text { Frequency } & \begin{array} { c } 
\text { Relative } \
\text { frequency }
\end{array} \
\hline \mathrm { O } & 22 & 0.44 \
\mathrm {~A} & 19 & 0.38 \
\mathrm {~B} & 6 & 0.12 \
\mathrm { AB } & 3 & 0.06
\end{array}$$

Accepted Answer

The answer of Make a bar graph to represent the...

Question 19

Construct a line chart for the data.
-$ \text { Student Quiz Scores }  $
$\begin{array} { l | c } 
\hline \text { Quiz Scores } & \text { Frequency } \
\hline 10 - 14 & 2 \
15 - 19 & 5 \
20 - 24 & 13 \
25 - 29 & 17 \
30 - 34 & 6 \
\hline
\end{array}$

Accepted Answer

A) 
  
B) 
  
C) 
  
D)  None of the above 
A) 
  
B) 
  
C) 
  
D)  None of the above

Question 20

Construct the requested histogram.
-Lake County wanted to find the typical size of farms in their county. The data below shows the sizes (in acres)of the 84 farms located in Lake County. Create a histogram of the data using bins that are 50 acres wide. 
$$\begin{array} { r r r r r r } 
200 & 172 & 52 & 100 & 85 & 100 \
50 & 63 & 16 & 64 & 40 & 54 \
8 & 25 & 212 & 67 & 125 & 250 \
400 & 142 & 65 & 49 & 45 & 9 \
32 & 33 & 41 & 112 & 99 & 50 \
88 & 66 & 135 & 18 & 37 & 38 \
103 & 296 & 98 & 77 & 85 & 29 \
73 & 48 & 48 & 167 & 15 & 100 \
149 & 59 & 80 & 21 & 141 & 33 \
21 & 130 & 49 & 37 & 139 & 17 \
95 & 40 & 5 & 440 & 21 & 60 \
19 & 199 & 147 & 46 & 90 & 26 \
61 & 91 & 28 & 84 & 47 & 159 \
182 & 73 & 71 & 249 & 50 & 92
\end{array}$$

Accepted Answer

The answer of Construct the requested histogram.
-Lake County wanted to...

Answer the question using the graphical display. -Identify the class that has the greatest increase in 2.5 or better GPA's over the five decades.

Use the graph to answer the question. - In what quarter was the revenue the greatest for 1999?

Solve the problem. -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 Use the data to construct a stem-and-leaf plot.

Use the graph to answer the question. - What was the revenue for the first quarter of 1999?

The following data represent the total number of years of formal education for 40 employees of a bank. 13 17 13 14 12 17 19 13 15 13 16 18 13 11 19 19 12 14 13 13 14 15 13 15 17 18 17 14 13 17 12 17 17 16 16 17 15 13 13 14 Create a frequency table for the number of years of education.

Solve the problem. -The attendance counts for this season's basketball games are listed below. 227 239 215 219 221 233 229 233 235 228 245 231 Use the data to construct a stem-and-leaf plot.

Make a bar graph to represent the data. -Construct a bar graph for the relative frequencies given. Blood type Frequency Relative frequency 22 0.44 19 0.38 6 0.12 3 0.06

Speaking of Statistics

Measurement in Statistics

Describing Data

A Normal World

Probability in Statistics

Correlation and Causality

Inferences From Samples to Populations

Hypothesis Testing

T Tests, Two-Way Tables, and Anova

Filters

Exam 3: Visual Displays of Data