Question 1

A scatter plot shows how the numbers in a data set are scattered around their average.

Accepted Answer

A) True 
 B)False

Question 2

The customer help center in your company receives calls from customers who need help with some of the customized software solutions your company provides. The staff prepare the following cumulative frequency polygon (ogive) for waiting times during the last three months. What percentage of customers had waiting times exceeding 6 minutes?

Accepted Answer

A)  7% 
B)  8% 
C)  11% 
D)  12% 
E)  89% 
A)  7% 
B)  8% 
C)  11% 
D)  12% 
E)  89%

Question 3

The 2010 and 2012 market share data of the three competitors (Alston, Baren, and Clemson) in an oligopolistic industry are presented in the following pie charts. Total sales for this industry were $1.5 billion in 2010 and $1.8 billion in 2012. Baren's sales in 2010 were ___.

Accepted Answer

A)  $342 million 
B)  $630 million 
C)  $675 million 
D)  $828 million 
E)  $928 million 
A)  $342 million 
B)  $630 million 
C)  $675 million 
D)  $828 million 
E)  $928 million

Question 4

Consider the following frequency distribution:   
What is the relative frequency of the first class?

Accepted Answer

A)  0.15 
B)  0.30 
C)  0.10 
D)  0.20 
E)  0.40 
A)  0.15 
B)  0.30 
C)  0.10 
D)  0.20 
E)  0.40

Question 5

The staff of Mr. Wayne Wertz, VP of Operations at Portland Peoples Bank, prepared a frequency histogram of waiting time for drive up ATM customers.   Approximately ___ drive up ATM customers waited less than 2 minutes.

Accepted Answer

A)  20 
B)  30 
C)  100 
D)  180 
E)  200 
A)  20 
B)  30 
C)  100 
D)  180 
E)  200

Question 6

Each day, the manager at Jamie's Auto Care prepares a frequency distribution and a histogram of sales transactions by dollar value of the transactions. Friday's histogram follows:   On Friday, the approximate number of sales transactions between $150 and $175 was ___.

Accepted Answer

A)  75 
B)  200 
C)  300 
D)  400 
E)  500 
A)  75 
B)  200 
C)  300 
D)  400 
E)  500

Question 7

In a frequency distribution, the first class interval begins at 18. The midpoint of the first class interval is 19.5, and the midpoint of the last class interval is 49.5. How many class intervals are there?

Accepted Answer

A)  11 
B)  17 
C)  22 
D)  33 
E)  34 
A)  11 
B)  17 
C)  22 
D)  33 
E)  34

Question 8

According to the following graphic, "Bent Pins" account for ___% of PCB Failures.

Accepted Answer

A)  10 
B)  20 
C)  30 
D)  40 
E)  50 
A)  10 
B)  20 
C)  30 
D)  40 
E)  50

Question 9

The staff of Ms. Tamara Hill, VP of Technical Analysis at Blue Sky Brokerage, prepared a frequency histogram of market capitalization of the 937 corporations listed on the American Stock Exchange in January 2013.   Approximately ___ corporations had capitalization exceeding $200,000,000.

Accepted Answer

A)  50 
B)  100 
C)  700 
D)  800 
E)  890 
A)  50 
B)  100 
C)  700 
D)  800 
E)  890

Question 10

Which of the following would be most helpful in constructing a pie chart?

Accepted Answer

A)  cumulative percent 
B)  relative frequency 
C)  ogive 
D)  frequency 
E)  none of the above 
A)  cumulative percent 
B)  relative frequency 
C)  ogive 
D)  frequency 
E)  none of the above

Question 11

A summary of data in which raw data are grouped into different intervals and the number of items in each group is listed is called a frequency distribution.

Accepted Answer

A) True 
 B)False

Question 12

Abel Alonzo, Director of Human Resources, is exploring employee absenteeism at the Harrison Haulers Plant during the last operating year. A review of all personnel records indicated that absences ranged from zero to twenty-nine days per employee. The following class intervals were proposed for a frequency distribution of absences.    
Which of the following represents a problem with this set of intervals?

Accepted Answer

A)  There are too few intervals. 
B)  Some numbers between 0 and 29, inclusively, would not fall into any interval. 
C)  The first and second interval overlaps. 
D)  There are too many intervals. 
E)  The second and the third interval overlap. 
A)  There are too few intervals. 
B)  Some numbers between 0 and 29, inclusively, would not fall into any interval. 
C)  The first and second interval overlaps. 
D)  There are too many intervals. 
E)  The second and the third interval overlap.

Question 13

One rule that must always be followed in constructing frequency distributions is that the adjacent classes must overlap.

Accepted Answer

A) True 
 B)False

Question 14

A Pareto chart and a pie chart are both types of categorical graphs.

Accepted Answer

A) True 
 B)False

Question 15

Each day, the manager at Jamie's Auto Care Shop prepares a frequency distribution and a histogram of sales transactions by dollar value of the transactions. Friday's histogram follows:   On Friday, the approximate number of sales transactions in the 75-under 100 category was ___.

Accepted Answer

A)  50 
B)  100 
C)  150 
D)  200 
E)  60 
A)  50 
B)  100 
C)  150 
D)  200 
E)  60

A scatter plot shows how the numbers in a data set are scattered around their average.

The 2010 and 2012 market share data of the three competitors (Alston, Baren, and Clemson) in an oligopolistic industry are presented in the following pie charts. Total sales for this industry were $1.5 billion in 2010 and $1.8 billion in 2012. Baren's sales in 2010 were ___.

Consider the following frequency distribution: What is the relative frequency of the first class?

The staff of Mr. Wayne Wertz, VP of Operations at Portland Peoples Bank, prepared a frequency histogram of waiting time for drive up ATM customers. Approximately ___ drive up ATM customers waited less than 2 minutes.

Each day, the manager at Jamie's Auto Care prepares a frequency distribution and a histogram of sales transactions by dollar value of the transactions. Friday's histogram follows: On Friday, the approximate number of sales transactions between $150 and $175 was ___.

In a frequency distribution, the first class interval begins at 18. The midpoint of the first class interval is 19.5, and the midpoint of the last class interval is 49.5. How many class intervals are there?

According to the following graphic, "Bent Pins" account for ___% of PCB Failures.

The staff of Ms. Tamara Hill, VP of Technical Analysis at Blue Sky Brokerage, prepared a frequency histogram of market capitalization of the 937 corporations listed on the American Stock Exchange in January 2013. Approximately ___ corporations had capitalization exceeding $200,000,000.

Which of the following would be most helpful in constructing a pie chart?

A summary of data in which raw data are grouped into different intervals and the number of items in each group is listed is called a frequency distribution.

One rule that must always be followed in constructing frequency distributions is that the adjacent classes must overlap.

A Pareto chart and a pie chart are both types of categorical graphs.

Each day, the manager at Jamie's Auto Care Shop prepares a frequency distribution and a histogram of sales transactions by dollar value of the transactions. Friday's histogram follows: On Friday, the approximate number of sales transactions in the 75-under 100 category was ___.

Introduction to Statistics

Descriptive Statistics

Gathering Data

Probability

Decision Analysis and Expected Value

Discrete Probability Distributions

Continuous Distributions

Sampling Distributions

Confidence Intervals

Hypothesis Testing for Single Populations

Hypothesis Testing for Two Populations

Analysis of Variance Anova

Linear Correlation and Simple Linear Regression Analysis

Categorical Versus Categorical: Tests

Filters

Exam 2: Organizing and Visualizing Data

A scatter plot shows how the numbers in a data set are scattered around their average.

The 2010 and 2012 market share data of the three competitors (Alston, Baren, and Clemson) in an oligopolistic industry are presented in the following pie charts. Total sales for this industry were $1.5 billion in 2010 and $1.8 billion in 2012. Baren's sales in 2010 were ___.

Consider the following frequency distribution: What is the relative frequency of the first class?

The staff of Mr. Wayne Wertz, VP of Operations at Portland Peoples Bank, prepared a frequency histogram of waiting time for drive up ATM customers. Approximately ___ drive up ATM customers waited less than 2 minutes.

Each day, the manager at Jamie's Auto Care prepares a frequency distribution and a histogram of sales transactions by dollar value of the transactions. Friday's histogram follows: On Friday, the approximate number of sales transactions between $150 and $175 was ___.

In a frequency distribution, the first class interval begins at 18. The midpoint of the first class interval is 19.5, and the midpoint of the last class interval is 49.5. How many class intervals are there?

According to the following graphic, "Bent Pins" account for ___% of PCB Failures.

The staff of Ms. Tamara Hill, VP of Technical Analysis at Blue Sky Brokerage, prepared a frequency histogram of market capitalization of the 937 corporations listed on the American Stock Exchange in January 2013. Approximately ___ corporations had capitalization exceeding $200,000,000.

Which of the following would be most helpful in constructing a pie chart?

A summary of data in which raw data are grouped into different intervals and the number of items in each group is listed is called a frequency distribution.

One rule that must always be followed in constructing frequency distributions is that the adjacent classes must overlap.

A Pareto chart and a pie chart are both types of categorical graphs.

Each day, the manager at Jamie's Auto Care Shop prepares a frequency distribution and a histogram of sales transactions by dollar value of the transactions. Friday's histogram follows: On Friday, the approximate number of sales transactions in the 75-under 100 category was ___.

Introduction to Statistics

Descriptive Statistics

Gathering Data

Probability

Decision Analysis and Expected Value

Discrete Probability Distributions

Continuous Distributions

Sampling Distributions

Confidence Intervals

Hypothesis Testing for Single Populations

Hypothesis Testing for Two Populations

Analysis of Variance Anova

Linear Correlation and Simple Linear Regression Analysis

Categorical Versus Categorical: Tests

Filters