Question 1

The difference between the lower class limits of adjacent classes provides the

Accepted Answer

A)  number of classes
B)  class limits
C)  class midpoint
D)  class widthE) A) and D)
F) All of the above

Question 2

Fifteen percent of the students in a school of Business Administration are majoring in Economics, 20% in Finance, 35% in Management, and 30% in Accounting. The graphical device(s)  which can be used to present these data is (are)

Accepted Answer

A)  a line chart
B)  only a bar chart
C)  only a pie chart
D)  both a bar chart and a pie chartE) B) and C)
F) A) and B)

Question 3

A sample of 50 TV viewers were asked, "Should TV sponsors pull their sponsorship from programs that draw numerous viewer complaints?" Below are the results of the survey. (Y = Yes; N = No; W = Without Opinion)  
a.Construct a frequency distribution and a bar chart.
b.Construct a relative frequency distribution and a pie chart.

Accepted Answer

The answer of A sample of 50 TV viewers were...

Question 4

Exhibit 2-4
Michael's Compute-All, a national computer retailer, has kept a record of the number of laptop computers they have sold for a period of 80 days. Their sales records are shown below: 
-Refer to Exhibit 2-4. The class width of the above distribution is

Accepted Answer

A)  0 to 100
B)  20
C)  80
D)  5E) A) and D)
F) None of the above

Question 5

Five hundred recent graduates indicated their majors as follows.  
a.Construct a relative frequency distribution.
b.Construct a percent frequency distribution.

Accepted Answer

The answer of Five hundred recent graduates indicated their majors...

Question 6

The ___ can be used to show the rank order and shape of a data set simultaneously.

Accepted Answer

A)  ogive
B)  pie chart
C)  stem-and-leaf display
D)  bar chartE) B) and C)
F) None of the above

Question 7

The relative frequency of a class is computed by

Accepted Answer

A)  dividing the cumulative frequency of the class by n
B)  dividing n by cumulative frequency of the class
C)  dividing the frequency of the class by n
D)  dividing the frequency of the class by the number of classesE) A) and B)
F) A) and C) C

Question 8

A cumulative relative frequency distribution shows

Accepted Answer

A)  the proportion of data items with values less than or equal to the upper limit of each class
B)  the proportion of data items with values less than or equal to the lower limit of each class
C)  the percentage of data items with values less than or equal to the upper limit of each class
D)  the percentage of data items with values less than or equal to the lower limit of each classE) B) and C)
F) None of the above A

Question 9

In a scatter diagram, a line that provides an approximation of the relationship between the variables is known as

Accepted Answer

A)  approximation line
B)  trend line
C)  line of zero intercept
D)  line of zero slopeE) A) and C)
F) A) and B)

Question 10

A frequency distribution is a tabular summary of data showing the

Accepted Answer

A)  fraction of items in several classes
B)  percentage of items in several classes
C)  relative percentage of items in several classes
D)  number of items in several classesE) B) and D)
F) B) and C)

Question 11

You are given the following data on the ages of employees at a company. Construct a stem-and-leaf display.

Accepted Answer

The answer of You are given the following data on...

Question 12

The sum of the percent frequencies for all classes will always equal

Accepted Answer

A)  one
B)  the number of classes
C)  the number of items in the study
D)  100E) A) and B)
F) B) and C)

Question 13

In a cumulative frequency distribution, the last class will always have a cumulative frequency equal to

Accepted Answer

A)  one
B)  100%
C)  the total number of elements in the data set
D)  None of these alternatives is correct.E) B) and C)
F) A) and D)

Question 14

In constructing a frequency distribution, as the number of classes are decreased, the class width

Accepted Answer

A)  decreases
B)  remains unchanged
C)  increases
D)  can increase or decrease depending on the data valuesE) B) and D)
F) A) and B)

Question 15

In a cumulative relative frequency distribution, the last class will have a cumulative relative frequency equal to

Accepted Answer

A)  one
B)  zero
C)  the total number of elements in the data set
D)  None of these alternatives is correct.E) C) and D)
F) B) and C)

Question 16

A tabular summary of a set of data showing the fraction of the total number of items in several classes is a

Accepted Answer

A)  frequency distribution
B)  relative frequency distribution
C)  frequency
D)  cumulative frequency distributionE) None of the above
F) A) and B)

Question 17

An Ogive is constructed by plotting a point corresponding to the ___ frequency of each class.

Accepted Answer

A)  relative
B)  cumulative
C)  percent
D)  octaveE) B) and C)
F) A) and D)

Question 18

A tabular method that can be used to summarize the data on two variables simultaneously is called

Accepted Answer

A)  simultaneous equations
B)  crosstabulation
C)  a histogram
D)  an ogiveE) A) and D)
F) All of the above

Question 19

Categorical data can be graphically represented by using a(n)

Accepted Answer

A)  histogram
B)  frequency polygon
C)  ogive
D)  bar chartE) A) and B)
F) A) and C)

Question 20

The total number of data items with a value less than the upper limit for the class is given by the

Accepted Answer

A)  frequency distribution
B)  relative frequency distribution
C)  cumulative frequency distribution
D)  cumulative relative frequency distributionE) A) and B)
F) All of the above C

Exam 2: Descriptive Statistics: Tabular and Graphical Displays

The difference between the lower class limits of adjacent classes provides the

Correct Answer
verified

Fifteen percent of the students in a school of Business Administration are majoring in Economics, 20% in Finance, 35% in Management, and 30% in Accounting. The graphical device(s) which can be used to present these data is (are)

Correct Answer
verified

Correct Answer
verified

Exhibit 2-4 Michael's Compute-All, a national computer retailer, has kept a record of the number of laptop computers they have sold for a period of 80 days. Their sales records are shown below: -Refer to Exhibit 2-4. The class width of the above distribution is

Correct Answer
verified

Five hundred recent graduates indicated their majors as follows. a.Construct a relative frequency distribution. b.Construct a percent frequency distribution.

Correct Answer
verified

The ___ can be used to show the rank order and shape of a data set simultaneously.

Correct Answer
verified

The relative frequency of a class is computed by

Correct Answer
verified
C

A cumulative relative frequency distribution shows

Correct Answer
verified
A

In a scatter diagram, a line that provides an approximation of the relationship between the variables is known as

Correct Answer
verified

A frequency distribution is a tabular summary of data showing the

Correct Answer
verified

You are given the following data on the ages of employees at a company. Construct a stem-and-leaf display.

Correct Answer
verified

The sum of the percent frequencies for all classes will always equal

Correct Answer
verified

In a cumulative frequency distribution, the last class will always have a cumulative frequency equal to

Correct Answer
verified

In constructing a frequency distribution, as the number of classes are decreased, the class width

Correct Answer
verified

In a cumulative relative frequency distribution, the last class will have a cumulative relative frequency equal to

Correct Answer
verified

A tabular summary of a set of data showing the fraction of the total number of items in several classes is a

Correct Answer
verified

An Ogive is constructed by plotting a point corresponding to the ___ frequency of each class.

Correct Answer
verified

A tabular method that can be used to summarize the data on two variables simultaneously is called

Correct Answer
verified

Categorical data can be graphically represented by using a(n)

Correct Answer
verified

The total number of data items with a value less than the upper limit for the class is given by the

Correct Answer
verified
C

Exam 2: Descriptive Statistics: Tabular and Graphical Displays

The difference between the lower class limits of adjacent classes provides the

Correct AnswerverifiedShow Answer

Fifteen percent of the students in a school of Business Administration are majoring in Economics, 20% in Finance, 35% in Management, and 30% in Accounting. The graphical device(s) which can be used to present these data is (are)

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Exhibit 2-4 Michael's Compute-All, a national computer retailer, has kept a record of the number of laptop computers they have sold for a period of 80 days. Their sales records are shown below: -Refer to Exhibit 2-4. The class width of the above distribution is

Correct AnswerverifiedShow Answer

Five hundred recent graduates indicated their majors as follows. a.Construct a relative frequency distribution. b.Construct a percent frequency distribution.

Correct AnswerverifiedShow Answer

The ___ can be used to show the rank order and shape of a data set simultaneously.

Correct AnswerverifiedShow Answer

The relative frequency of a class is computed by

Correct AnswerverifiedC

A cumulative relative frequency distribution shows

Correct AnswerverifiedA

In a scatter diagram, a line that provides an approximation of the relationship between the variables is known as

Correct AnswerverifiedShow Answer

A frequency distribution is a tabular summary of data showing the

Correct AnswerverifiedShow Answer

You are given the following data on the ages of employees at a company. Construct a stem-and-leaf display.

Correct AnswerverifiedShow Answer

The sum of the percent frequencies for all classes will always equal

Correct AnswerverifiedShow Answer

In a cumulative frequency distribution, the last class will always have a cumulative frequency equal to

Correct AnswerverifiedShow Answer

In constructing a frequency distribution, as the number of classes are decreased, the class width

Correct AnswerverifiedShow Answer

In a cumulative relative frequency distribution, the last class will have a cumulative relative frequency equal to

Correct AnswerverifiedShow Answer

A tabular summary of a set of data showing the fraction of the total number of items in several classes is a

Correct AnswerverifiedShow Answer

An Ogive is constructed by plotting a point corresponding to the ___ frequency of each class.

Correct AnswerverifiedShow Answer

A tabular method that can be used to summarize the data on two variables simultaneously is called

Correct AnswerverifiedShow Answer

Categorical data can be graphically represented by using a(n)

Correct AnswerverifiedShow Answer

The total number of data items with a value less than the upper limit for the class is given by the

Correct AnswerverifiedC

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C

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A

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C