Question 1

The proper way to construct a stem-and-leaf display for the data set {62, 67, 68, 73, 73, 79, 91, 94, 95, 97} is to​

Accepted Answer

A)  ​exclude a stem labeled '8. 
B)  ​include a stem labeled '8' and enter no leaves on the stem. 
C)  ​include a stem labeled '(8)' and enter no leaves on the stem. 
D)  ​include a stem labeled '8' and enter one leaf value of '0' on the stem. 
A)  ​exclude a stem labeled '8. 
B)  ​include a stem labeled '8' and enter no leaves on the stem. 
C)  ​include a stem labeled '(8)' and enter no leaves on the stem. 
D)  ​include a stem labeled '8' and enter one leaf value of '0' on the stem.

Question 2

The relative frequency of a class is computed by

Accepted Answer

A)  dividing the midpoint of the class by the sample size. 
B)  dividing the frequency of the class by the midpoint. 
C)  dividing the sample size by the frequency of the class. 
D)  dividing the frequency of the class by the sample size. 
A)  dividing the midpoint of the class by the sample size. 
B)  dividing the frequency of the class by the midpoint. 
C)  dividing the sample size by the frequency of the class. 
D)  dividing the frequency of the class by the sample size.

Question 3

A researcher is gathering data from four geographical areas designated: South = 1; North = 2; East = 3; West = 4.The designated geographical regions represent?

Accepted Answer

A)  ?categorical data. 
B)  ?quantitative data. 
C)  ?crosstabular data. 
D)  ?either categorical or quantitative data. 
A)  ?categorical data. 
B)  ?quantitative data. 
C)  ?crosstabular data. 
D)  ?either categorical or quantitative data.

Question 4

A sample of the class sizes of 10 statistics classes at a university is shown below.   ​
Construct a dot plot for the above data.

Accepted Answer

The answer of A sample of the class sizes of...

Question 5

The numbers of hours worked (per week) by 400 statistics students are shown below.   ​ The percentage of students who work at least 20 hours per week is

Accepted Answer

A)  25%. 
B)  50%. 
C)  75%. 
D)  100%. 
A)  25%. 
B)  50%. 
C)  75%. 
D)  100%.

Question 6

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)  the class width. 
A)  one. 
B)  100%. 
C)  the total number of elements in the data set. 
D)  the class width.

Question 7

Data that indicate how much or how many are known as​

Accepted Answer

A)  ​categorical data. 
B)  ​quantitative data. 
C)  ​relative data. 
D)  ​cumulative data. 
A)  ​categorical data. 
B)  ​quantitative data. 
C)  ​relative data. 
D)  ​cumulative data.

Question 8

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

Accepted Answer

A)  frequency 
B)  relative frequency 
C)  cumulative frequency 
D)  cumulative relative frequency 
A)  frequency 
B)  relative frequency 
C)  cumulative frequency 
D)  cumulative relative frequency

Question 9

Which of the following is a graphical summary of a set of data in which each data value is represented by a dot above the axis?

Accepted Answer

A)  Histogram 
B)  Pie chart 
C)  Dot plot 
D)  Crosstabulation 
A)  Histogram 
B)  Pie chart 
C)  Dot plot 
D)  Crosstabulation

Question 10

​If several frequency distributions are constructed from the same data set, the distribution with the widest class width will have the

Accepted Answer

A)  ​fewest classes. 
B)  ​most classes. 
C)  ​smallest total frequency. 
D)  ​largest total frequency. 
A)  ​fewest classes. 
B)  ​most classes. 
C)  ​smallest total frequency. 
D)  ​largest total frequency.

Question 11

A graphical tool typically associated with the display of key performance indicators is a

Accepted Answer

A)  side-by-side bar chart. 
B)  stem-and-leaf display. 
C)  stacked bar chart. 
D)  data dashboard. 
A)  side-by-side bar chart. 
B)  stem-and-leaf display. 
C)  stacked bar chart. 
D)  data dashboard.

Question 12

A graphical presentation of the relationship between two quantitative variables is​

Accepted Answer

A)  ​dot plot. 
B)  ​histogram. 
C)  ​stem-and-leaf display. 
D)  ​scatter diagram. 
A)  ​dot plot. 
B)  ​histogram. 
C)  ​stem-and-leaf display. 
D)  ​scatter diagram.

Question 13

A histogram is

Accepted Answer

A)  a graphical presentation of a frequency or relative frequency distribution. 
B)  a graphical method of presenting a cumulative frequency or a cumulative relative frequency distribution. 
C)  the history of data elements. 
D)  the same as a pie chart. 
A)  a graphical presentation of a frequency or relative frequency distribution. 
B)  a graphical method of presenting a cumulative frequency or a cumulative relative frequency distribution. 
C)  the history of data elements. 
D)  the same as a pie chart.

Question 14

The numbers of hours worked (per week) by 400 statistics students are shown below.   ​ The cumulative percent frequency for students working 10 or more hours per week is

Accepted Answer

A)  20%. 
B)  25%. 
C)  80%. 
D)  95%. 
A)  20%. 
B)  25%. 
C)  80%. 
D)  95%.

Question 15

There are 800 students in the School of Business Administration.There are four majors in the School: Accounting, Finance, Management, and Marketing.The following shows the number of students in each major.   Develop a percent frequency distribution and construct a bar chart and a pie chart.

Accepted Answer

The answer of There are 800 students in the School...

Question 16

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

Accepted Answer

A)  one. 
B)  100%. 
C)  the total number of elements in the data set. 
D)  the total of classes in the data set. 
A)  one. 
B)  100%. 
C)  the total number of elements in the data set. 
D)  the total of classes in the data set.

Question 17

A sample of 15 children shows their favorite kind of pet: ​   ​
Which of the following displays is most appropriate for this data?

Accepted Answer

A)  Side-by-side bar chart 
B)  Histogram 
C)  Stacked bar chart 
D)  Pie chart 
A)  Side-by-side bar chart 
B)  Histogram 
C)  Stacked bar chart 
D)  Pie chart

Question 18

The frequency distribution below was constructed from data collected on the quarts of soft drinks consumed per week by 20 students.   ​ 
a.
Construct a relative frequency distribution.
b.
Construct a cumulative frequency distribution.
c.
Construct a cumulative relative frequency distribution.

Accepted Answer

The answer of The frequency distribution below was constructed from...

Question 19

​Which of the following types of data cannot be appropriately displayed by a histogram?

Accepted Answer

A)  Frequency 
B)  Relative frequency 
C)  ​Cumulative frequency 
D)  ​Percent frequency 
A)  Frequency 
B)  Relative frequency 
C)  ​Cumulative frequency 
D)  ​Percent frequency

Question 20

In a crosstabulation​

Accepted Answer

A)  ​both variables must be categorical. 
B)  ​both variables must be quantitative. 
C)  ​one variable must be categorical and the other must be quantitative. 
D)  ​either or both variables can be categorical or quantitative. 
A)  ​both variables must be categorical. 
B)  ​both variables must be quantitative. 
C)  ​one variable must be categorical and the other must be quantitative. 
D)  ​either or both variables can be categorical or quantitative.

The proper way to construct a stem-and-leaf display for the data set {62, 67, 68, 73, 73, 79, 91, 94, 95, 97} is to

The relative frequency of a class is computed by

A researcher is gathering data from four geographical areas designated: South = 1; North = 2; East = 3; West = 4.The designated geographical regions represent?

A sample of the class sizes of 10 statistics classes at a university is shown below. Construct a dot plot for the above data.

The numbers of hours worked (per week) by 400 statistics students are shown below. The percentage of students who work at least 20 hours per week is

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

Data that indicate how much or how many are known as

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

Which of the following is a graphical summary of a set of data in which each data value is represented by a dot above the axis?

If several frequency distributions are constructed from the same data set, the distribution with the widest class width will have the

A graphical tool typically associated with the display of key performance indicators is a

A graphical presentation of the relationship between two quantitative variables is

A histogram is

The numbers of hours worked (per week) by 400 statistics students are shown below. The cumulative percent frequency for students working 10 or more hours per week is

There are 800 students in the School of Business Administration.There are four majors in the School: Accounting, Finance, Management, and Marketing.The following shows the number of students in each major. Develop a percent frequency distribution and construct a bar chart and a pie chart.

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

A sample of 15 children shows their favorite kind of pet: Which of the following displays is most appropriate for this data?

The frequency distribution below was constructed from data collected on the quarts of soft drinks consumed per week by 20 students. a. Construct a relative frequency distribution. b. Construct a cumulative frequency distribution. c. Construct a cumulative relative frequency distribution.

Which of the following types of data cannot be appropriately displayed by a histogram?

In a crosstabulation

Data and Statistics

Descriptive Statistics: Numerical Measures

Introduction to Probability

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Tests

Inference About Means and Proportions With Two Populations

Inferences About Population Variances

Comparing Multiple Proportions, Tests of Independence and Goodness of Fit

Experimental Design and Analysis of Variance

Simple Linear Regression

Multiple Regression

Filters

Exam 2: Descriptive Statistics: Tabular and Graphical Displays

The proper way to construct a stem-and-leaf display for the data set {62, 67, 68, 73, 73, 79, 91, 94, 95, 97} is to​

The relative frequency of a class is computed by

A researcher is gathering data from four geographical areas designated: South = 1; North = 2; East = 3; West = 4.The designated geographical regions represent?

A sample of the class sizes of 10 statistics classes at a university is shown below. ​ Construct a dot plot for the above data.

The numbers of hours worked (per week) by 400 statistics students are shown below. ​ The percentage of students who work at least 20 hours per week is

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

Data that indicate how much or how many are known as​

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

Which of the following is a graphical summary of a set of data in which each data value is represented by a dot above the axis?

​If several frequency distributions are constructed from the same data set, the distribution with the widest class width will have the

A graphical tool typically associated with the display of key performance indicators is a

A graphical presentation of the relationship between two quantitative variables is​

A histogram is

The numbers of hours worked (per week) by 400 statistics students are shown below. ​ The cumulative percent frequency for students working 10 or more hours per week is

There are 800 students in the School of Business Administration.There are four majors in the School: Accounting, Finance, Management, and Marketing.The following shows the number of students in each major. Develop a percent frequency distribution and construct a bar chart and a pie chart.

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

A sample of 15 children shows their favorite kind of pet: ​ ​ Which of the following displays is most appropriate for this data?

The frequency distribution below was constructed from data collected on the quarts of soft drinks consumed per week by 20 students. ​ a. Construct a relative frequency distribution. b. Construct a cumulative frequency distribution. c. Construct a cumulative relative frequency distribution.

​Which of the following types of data cannot be appropriately displayed by a histogram?

In a crosstabulation​

Data and Statistics

Descriptive Statistics: Numerical Measures

Introduction to Probability

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Tests

Inference About Means and Proportions With Two Populations

Inferences About Population Variances

Comparing Multiple Proportions, Tests of Independence and Goodness of Fit

Experimental Design and Analysis of Variance

Simple Linear Regression

Multiple Regression

Filters

The proper way to construct a stem-and-leaf display for the data set {62, 67, 68, 73, 73, 79, 91, 94, 95, 97} is to

A sample of the class sizes of 10 statistics classes at a university is shown below. Construct a dot plot for the above data.

The numbers of hours worked (per week) by 400 statistics students are shown below. The percentage of students who work at least 20 hours per week is

Data that indicate how much or how many are known as

If several frequency distributions are constructed from the same data set, the distribution with the widest class width will have the

A graphical presentation of the relationship between two quantitative variables is

The numbers of hours worked (per week) by 400 statistics students are shown below. The cumulative percent frequency for students working 10 or more hours per week is

A sample of 15 children shows their favorite kind of pet: Which of the following displays is most appropriate for this data?

The frequency distribution below was constructed from data collected on the quarts of soft drinks consumed per week by 20 students. a. Construct a relative frequency distribution. b. Construct a cumulative frequency distribution. c. Construct a cumulative relative frequency distribution.

Which of the following types of data cannot be appropriately displayed by a histogram?

In a crosstabulation