Question 1

A university recently collected data for a sample of 200 business majors.One variable collected was the number of credits left to be taken before graduation.This variable could effectively be displayed using a line chart.

Accepted Answer

A) True 
 B)False

Question 2

The undergraduate students at your university are classified as freshmen,sophomores,juniors,or seniors.A recent study of undergraduates asked the students to indicate the number of credits they were registered for this term.The responses were 3,6,9,12,15,and 18.The number of cells in a joint frequency distribution for the two variables,class standing,and credit hours is:

Accepted Answer

A) 4. 
B) 10. 
C) 24. 
D) None of the above.

Question 3

Consider the following chart.Which of the following statements is most correct?

Accepted Answer

A) There is a negative linear relationship between the two variables. 
B) There is a positive linear relationship between the two variables. 
C) There is a perfect linear relationship between the two variables. 
D) There is no apparent relationship between the two variables.

Question 4

For the same data,a graph of a relative frequency distribution will look exactly the same as a graph of the frequency distribution.

Accepted Answer

A) True 
 B)False

Question 5

When developing a frequency distribution,the following classes would be considered acceptable:
5 to < 10
10 to < 20
20 to < 40

Accepted Answer

A) True 
 B)False

Question 6

Consider the following chart.Which of the following statements is most correct?

Accepted Answer

A) The values for the dependent variable are determined by the values for the independent variable. 
B) The values in a scatter plot should be connected by a straight line. 
C) The variable on the horizontal axis should be the independent variable. 
D) A scatter plot like this one shows the trend in the data over time.

Question 7

The following class limits would be acceptable for developing a frequency distribution on income:
$0 < $5,000
$5001 < $10,000
$10,001 < $20,000
Over $20,000

Accepted Answer

A) True 
 B)False

Question 8

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 9

Frequency distributions can be formed from which of the following types of data?

Accepted Answer

A) Both discrete and continuous 
B) Discrete only 
C) Continuous only 
D) Only qualitative data

Question 10

A homeowners association consists of 20 homes.The family in each home is considered an automatic member of the association.Recently,one of the homes fell into a state of disrepair.A survey was conducted of the homeowners both on the same street as the house in question and on the second street.At issue was whether legal action should be brought against the homeowner with the problem house.There are 8 homes on the same street as the problem house and 6 of these called for legal action.The percentage of houses on the second street that favored legal action is 50 percent.Which type of chart might be most effective for conveying the information about percentage of residents favoring legal action by street?

Accepted Answer

A) Histogram 
B) Stem and leaf diagram 
C) Bar chart 
D) Pie chart

Question 11

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 12

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 13

A tire store manager has collected data showing the number of tires of each brand sold during the past month.A bar chart might be effective in graphically illustrating which brands tend to sell best at this store.

Accepted Answer

A) True 
 B)False

Question 14

When using the Histogram tool in Excel to construct a frequency distribution and histogram,if the first bin value is 10 and the second bin value is 20,the frequency count for the second class will include all values from 10 up to,but not including,20.

Accepted Answer

A) True 
 B)False

Question 15

One of the differences between a stem and leaf diagram and a histogram is that even for variables involving a large number of different values,the stem and leaf diagram shows the individual data values whereas the histogram requires you to group the data and lose the individual values.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following is not considered desirable when constructing a frequency distribution for continuous data?

Accepted Answer

A) Open-ended classes 
B) Mutually exclusive classes 
C) Equal-width classes 
D) All-inclusive classes

Question 17

In Excel a joint frequency distribution table can be created using a tool called PivotTable.

Accepted Answer

A) True 
 B)False

Question 18

When developing a bar chart,it is usually preferable to organize the bars in order from high to low.

Accepted Answer

A) True 
 B)False

Question 19

Bar charts can show either frequency or percentage.

Accepted Answer

A) True 
 B)False

Question 20

In constructing a scatter diagram:

Accepted Answer

A) the independent variable should be on the vertical axis. 
B) the independent variable should be on the horizontal axis. 
C) the dependent variable should be on the horizontal axis. 
D) It does not matter which variable goes on which axis.

Exam 2: Graphs,Charts and Tablesdescribing Your Data

A university recently collected data for a sample of 200 business majors.One variable collected was the number of credits left to be taken before graduation.This variable could effectively be displayed using a line chart.

Consider the following chart.Which of the following statements is most correct?

For the same data,a graph of a relative frequency distribution will look exactly the same as a graph of the frequency distribution.

When developing a frequency distribution,the following classes would be considered acceptable: 5 to < 10 10 to < 20 20 to < 40

Consider the following chart.Which of the following statements is most correct?

The following class limits would be acceptable for developing a frequency distribution on income: $0 < $5,000 $5001 < $10,000 $10,001 < $20,000 Over $20,000

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.

Frequency distributions can be formed from which of the following types of data?

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

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.

A tire store manager has collected data showing the number of tires of each brand sold during the past month.A bar chart might be effective in graphically illustrating which brands tend to sell best at this store.

When using the Histogram tool in Excel to construct a frequency distribution and histogram,if the first bin value is 10 and the second bin value is 20,the frequency count for the second class will include all values from 10 up to,but not including,20.

One of the differences between a stem and leaf diagram and a histogram is that even for variables involving a large number of different values,the stem and leaf diagram shows the individual data values whereas the histogram requires you to group the data and lose the individual values.

Which of the following is not considered desirable when constructing a frequency distribution for continuous data?

In Excel a joint frequency distribution table can be created using a tool called PivotTable.

When developing a bar chart,it is usually preferable to organize the bars in order from high to low.

Bar charts can show either frequency or percentage.

In constructing a scatter diagram: