Question 1

A recent study of students at the university contained data on year in school and student age.An appropriate tool for analyzing the relationship between these two variables would be a joint frequency distribution.

Accepted Answer

A) True 
 B)False

Question 2

There is no hard-and-fast rule regarding the number of classes that must be used when establishing a frequency distribution for a continuous variable.

Accepted Answer

A) True 
 B)False

Question 3

A histogram can be used to display a joint frequency distribution between two quantitative variables.

Accepted Answer

A) True 
 B)False

Question 4

Discuss the steps that you would use to manually construct a histogram for the salaries of the 1,124 employees in the Ferris Steel Company.

Accepted Answer

The answer of Discuss the steps that you would use...

Question 5

The Carter Department Store has data on the sales volume by department for the past 200 days.The data are in an Excel spreadsheet where column A represents the department name and column B represents the sales for that day in that department.In order to construct a bar chart that illustrates the difference in total sales by department for the 200 days,a required step in Excel will be to:

Accepted Answer

A) determine the total sales by department. 
B) use the frequency function to count the number of occurrences by department. 
C) group the data into 5 to 20 classes. 
D) determine the class widths.

Question 6

In a study involving car owners,one question asked the owner for the number of miles driven last year.A second question asked the owner for the age of the vehicle.A histogram would be useful for analyzing the relationship between miles driven and the age of the vehicle.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following is NOT true of a bar chart?

Accepted Answer

A) It is used for numerical data. 
B) The bars can be either horizontal or vertical. 
C) It can show either frequency or relative frequency. 
D) It is used for categorical data.

Question 8

When choosing class boundaries for a frequency distribution,classes such as 60-70,70-80,80-90 would be acceptable.

Accepted Answer

A) True 
 B)False

Question 9

A histogram can be created for discrete or continuous data.

Accepted Answer

A) True 
 B)False

Question 10

Sawyer & Company is a law firm in Dallas,Texas.Recently,the administrative manager prepared a report for the managing partners that showed the number of court cases handled by the firm monthly over the past three years.It was appropriate for her to use a line chart in this case.

Accepted Answer

A) True 
 B)False

Question 11

Recently a survey was conducted in which customers of a large insurance company were asked to indicate the number of speeding tickets they had received in the past three years.The minimum value in the data was zero and the largest was six tickets.If you wished to illustrate the proportion of people who had three or fewer tickets,you would most likely construct a cumulative relative frequency distribution.

Accepted Answer

A) True 
 B)False

Question 12

A histogram can be constructed for data that are either quantitative or qualitative.

Accepted Answer

A) True 
 B)False

Question 13

In forming the classes for a frequency distribution and histogram,suppose there were a number of empty classes.You should:

Accepted Answer

A) increase the class width. 
B) decrease the class width. 
C) keep the current class width. 
D) use an ogive instead.

Question 14

The city counsel has just voted to pass the city's budget for next year.If you were writing a report describing the budget so the citizens could understand how the total tax dollars will be spent,which of the following graphs might be most appropriate?

Accepted Answer

A) Pie chart 
B) Scatter diagram 
C) Histogram 
D) Ogive

Question 15

If you wish to construct a graph of a relative frequency distribution,you would most likely construct an ogive.

Accepted Answer

A) True 
 B)False

Question 16

A stem and leaf diagram is used to:

Accepted Answer

A) display the distribution of a quantitative variable. 
B) show the joint relationship between two variables. 
C) graph a joint frequency distribution. 
D) show relative cumulative frequency.

Question 17

The upper and lower limits of each class in a frequency distribution are also referred to as the data array.

Accepted Answer

A) True 
 B)False

Question 18

A study was recently conducted by the regional electric and gas company.Data were collected for three customer categories showing the dollar amount of natural gas and the dollar amount of electricity consumed during the year.Which of the following graphs would most likely be used to display both sets of data together?

Accepted Answer

A) Pie chart 
B) Bar chart 
C) Line chart 
D) Histogram

Question 19

In Excel,joint frequency distributions can be generated using the Pivot Table feature under the Data tab.

Accepted Answer

A) True 
 B)False

Question 20

Suppose you are given the following data.  If you wish to have a histogram with five classes,what should the first class limits be?

Accepted Answer

The answer of Suppose you are given the following data....

Exam 2: Graphs,charts and Tablesdescribing Your Data

A recent study of students at the university contained data on year in school and student age.An appropriate tool for analyzing the relationship between these two variables would be a joint frequency distribution.

There is no hard-and-fast rule regarding the number of classes that must be used when establishing a frequency distribution for a continuous variable.

A histogram can be used to display a joint frequency distribution between two quantitative variables.

Discuss the steps that you would use to manually construct a histogram for the salaries of the 1,124 employees in the Ferris Steel Company.

In a study involving car owners,one question asked the owner for the number of miles driven last year.A second question asked the owner for the age of the vehicle.A histogram would be useful for analyzing the relationship between miles driven and the age of the vehicle.

Which of the following is NOT true of a bar chart?

When choosing class boundaries for a frequency distribution,classes such as 60-70,70-80,80-90 would be acceptable.

A histogram can be created for discrete or continuous data.

Sawyer & Company is a law firm in Dallas,Texas.Recently,the administrative manager prepared a report for the managing partners that showed the number of court cases handled by the firm monthly over the past three years.It was appropriate for her to use a line chart in this case.

A histogram can be constructed for data that are either quantitative or qualitative.

In forming the classes for a frequency distribution and histogram,suppose there were a number of empty classes.You should:

The city counsel has just voted to pass the city's budget for next year.If you were writing a report describing the budget so the citizens could understand how the total tax dollars will be spent,which of the following graphs might be most appropriate?

If you wish to construct a graph of a relative frequency distribution,you would most likely construct an ogive.

A stem and leaf diagram is used to:

The upper and lower limits of each class in a frequency distribution are also referred to as the data array.

In Excel,joint frequency distributions can be generated using the Pivot Table feature under the Data tab.

Suppose you are given the following data. If you wish to have a histogram with five classes,what should the first class limits be?