Question 1

The _________ is a graphical technique that cannot be used to display qualitative data.

Accepted Answer

The answer of The _________ is a graphical technique that...

Question 2

Construct a stem-and-leaf diagram for the following data set.   Is the distribution symmetric?

Accepted Answer

Sort the data from lowest value to highe

Question 3

What type of relationship is indicated in the scatterplot?

Accepted Answer

A)  No relationship 
B)  A negative linear relationship 
C)  A negative curvilinear relationship 
D)  A positive linear or curvilinear relationship 
A)  No relationship 
B)  A negative linear relationship 
C)  A negative curvilinear relationship 
D)  A positive linear or curvilinear relationship

Question 4

Each month the Bureau of Labor Statistics reports the number of people (in thousands)employed in the United States by age.The accompanying frequency distribution shows the results for August 2011.   a.Construct a relative frequency distribution.What proportion of workers is between 20 and 24 years old?
b.Construct a cumulative relative frequency distribution.What proportion of workers is younger than 35 years old?
c.Construct a relative frequency histogram.

Accepted Answer

First find the total number of people su

Question 5

A polygon connects a series of neighboring points where each point represents the midpoint of a particular class and its associated frequency or relative frequency.

Accepted Answer

A) True 
 B)False

Question 6

An ogive is a graph that plots the cumulative frequency (or the cumulative relative frequency)of each class above the lower limit of the corresponding class.

Accepted Answer

A) True 
 B)False

Question 7

Use the following data to construct a scatterplot.What type of relationship is implied?

Accepted Answer

A)  No relationship 
B)  A positive relationship 
C)  A negative relationship 
D)  There is not enough information to answer 
A)  No relationship 
B)  A positive relationship 
C)  A negative relationship 
D)  There is not enough information to answer

Question 8

The percent frequency of a category equals the frequency of the category multiplied by 100%.

Accepted Answer

A) True 
 B)False

Question 9

How does an ogive differ from a polygon?

Accepted Answer

A)  An ogive is used for qualitative data,while a polygon is used for quantitative data. 
B)  An ogive is used for quantitative data,while a polygon is used for qualitative data. 
C)  An ogive is a graphical depiction of a frequency or relative distribution,while a polygon is a graphical depiction of a cumulative frequency or cumulative relative frequency distribution. 
D)  An ogive is a graphical depiction of a cumulative frequency or cumulative relative frequency distribution,while a polygon is a graphical depiction of a frequency or relative frequency distribution. 
A)  An ogive is used for qualitative data,while a polygon is used for quantitative data. 
B)  An ogive is used for quantitative data,while a polygon is used for qualitative data. 
C)  An ogive is a graphical depiction of a frequency or relative distribution,while a polygon is a graphical depiction of a cumulative frequency or cumulative relative frequency distribution. 
D)  An ogive is a graphical depiction of a cumulative frequency or cumulative relative frequency distribution,while a polygon is a graphical depiction of a frequency or relative frequency distribution.

Question 10

An auto parts chain asked customers to complete a survey rating the chain's customer service as average,above average,or below average.The following table shows the results from the survey.   A rating of Average or Above Average accounted for what number of responses to the survey?

Accepted Answer

A)  3 
B)  7 
C)  8 
D)  10 
A)  3 
B)  7 
C)  8 
D)  10

Question 11

A stem-and-leaf diagram is constructed by separating each value of a data set into two parts.What are these parts?

Accepted Answer

A)  Stem consisting of the last digit and leaf consisting of the leftmost digits 
B)  Stem consisting of the leftmost digits and leaf consisting of the second digit 
C)  Stem consisting of the second digit and leaf consisting of the last digit 
D)  Stem consisting of the leftmost digits and leaf consisting of the last digit 
A)  Stem consisting of the last digit and leaf consisting of the leftmost digits 
B)  Stem consisting of the leftmost digits and leaf consisting of the second digit 
C)  Stem consisting of the second digit and leaf consisting of the last digit 
D)  Stem consisting of the leftmost digits and leaf consisting of the last digit

Question 12

Consider the following frequency distribution.   The total number of observations in the frequency distribution is ______.

Accepted Answer

A)  5 
B)  6 
C)  20 
D)  24 
A)  5 
B)  6 
C)  20 
D)  24

Question 13

A hair stylist records the hair color of her 25 most recent appointments,classifying the color as blonde,brown,black,or red.Her data set is displayed next.   a.Construct a frequency and relative frequency distribution of the hair color of the stylist's customers.
b.Construct a pie chart.Which hair color is the most common among the stylist's customers?
c.Create a bar chart to display the frequency distribution.How many customers had black hair?

Accepted Answer

To construct a pie chart in Excel,select

Question 14

The manager at a water park constructed the following frequency distribution to summarize attendance in July and August.   What of the following is the most likely attendance range?

Accepted Answer

A)  2,000 up to 2,500 
B)  1,750 up to 2,000 
C)  1,000 up to 1,750 
D)  1,250 up to 1,750 
A)  2,000 up to 2,500 
B)  1,750 up to 2,000 
C)  1,000 up to 1,750 
D)  1,250 up to 1,750

Question 15

The relative frequency of a category is calculated by dividing the category's frequency by the total number of observations.

Accepted Answer

A) True 
 B)False

Question 16

A scatterplot depicts a positive _________ relationship,if as x increases,y tends to increase at an increasing rate.

Accepted Answer

The answer of A scatterplot depicts a positive _________ relationship,if...

Question 17

Consider the following frequency distribution.   What proportion of the observations are at least 15 but less than 18?

Accepted Answer

A)  0.20 
B)  0.25 
C)  0.30 
D)  0.35 
A)  0.20 
B)  0.25 
C)  0.30 
D)  0.35

Question 18

The following is a list of five of the world's busiest airports by passenger traffic for 2010.   How many more millions of passengers flew out of Atlanta than flew out of Chicago?

Accepted Answer

A)  13 
B)  21 
C)  23 
D)  25 
A)  13 
B)  21 
C)  23 
D)  25

Question 19

The accompanying chart shows the numbers of books written by each author in a collection of cookbooks.What type of chart is this?

Accepted Answer

A)  Bar chart for qualitative data 
B)  Bar chart for quantitative data 
C)  Frequency histogram for qualitative data 
D)  Frequency histogram for quantitative data 
A)  Bar chart for qualitative data 
B)  Bar chart for quantitative data 
C)  Frequency histogram for qualitative data 
D)  Frequency histogram for quantitative data

Question 20

Thirty students at Eastside High School took the SAT on the same Saturday.Their raw scores are given next.   Consider a frequency distribution of the data that groups the data in classes of 1400 up to 1600,1600 up to 1800,1800 up to 2000,and so on.What is the approximate relative frequency of students who scored more than 1600 but less than 1800?

Accepted Answer

A)  0.17 
B)  0.23 
C)  0.40 
D)  0.77 
A)  0.17 
B)  0.23 
C)  0.40 
D)  0.77

The _________ is a graphical technique that cannot be used to display qualitative data.

Construct a stem-and-leaf diagram for the following data set. Is the distribution symmetric?

What type of relationship is indicated in the scatterplot?

A polygon connects a series of neighboring points where each point represents the midpoint of a particular class and its associated frequency or relative frequency.

An ogive is a graph that plots the cumulative frequency (or the cumulative relative frequency)of each class above the lower limit of the corresponding class.

Use the following data to construct a scatterplot.What type of relationship is implied?

The percent frequency of a category equals the frequency of the category multiplied by 100%.

How does an ogive differ from a polygon?

An auto parts chain asked customers to complete a survey rating the chain's customer service as average,above average,or below average.The following table shows the results from the survey. A rating of Average or Above Average accounted for what number of responses to the survey?

A stem-and-leaf diagram is constructed by separating each value of a data set into two parts.What are these parts?

Consider the following frequency distribution. The total number of observations in the frequency distribution is ______.

The manager at a water park constructed the following frequency distribution to summarize attendance in July and August. What of the following is the most likely attendance range?

The relative frequency of a category is calculated by dividing the category's frequency by the total number of observations.

A scatterplot depicts a positive _________ relationship,if as x increases,y tends to increase at an increasing rate.

Consider the following frequency distribution. What proportion of the observations are at least 15 but less than 18?

The following is a list of five of the world's busiest airports by passenger traffic for 2010. How many more millions of passengers flew out of Atlanta than flew out of Chicago?

The accompanying chart shows the numbers of books written by each author in a collection of cookbooks.What type of chart is this?

Statistics and Data

Numerical Descriptive Measures

Basic Probability Concepts

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Testing

Statistical Inference Concerning Two Populations

Statistical Inference Concerning Variance

Chi-Square Tests

Analysis of Variance

Regression Analysis

Inference With Regression Models

Regression Models for Nonlinear Relationships

Regression Models With Dummy Variables

Time Series and Forecasting

Returns, Index Numbers and Inflation

Nonparametric Tests

Filters

Exam 2: Tabular and Graphical Methods

The _________ is a graphical technique that cannot be used to display qualitative data.

Construct a stem-and-leaf diagram for the following data set. Is the distribution symmetric?

What type of relationship is indicated in the scatterplot?

A polygon connects a series of neighboring points where each point represents the midpoint of a particular class and its associated frequency or relative frequency.

An ogive is a graph that plots the cumulative frequency (or the cumulative relative frequency)of each class above the lower limit of the corresponding class.

Use the following data to construct a scatterplot.What type of relationship is implied?

The percent frequency of a category equals the frequency of the category multiplied by 100%.

How does an ogive differ from a polygon?

An auto parts chain asked customers to complete a survey rating the chain's customer service as average,above average,or below average.The following table shows the results from the survey. A rating of Average or Above Average accounted for what number of responses to the survey?

A stem-and-leaf diagram is constructed by separating each value of a data set into two parts.What are these parts?

Consider the following frequency distribution. The total number of observations in the frequency distribution is ______.

The manager at a water park constructed the following frequency distribution to summarize attendance in July and August. What of the following is the most likely attendance range?

The relative frequency of a category is calculated by dividing the category's frequency by the total number of observations.

A scatterplot depicts a positive _________ relationship,if as x increases,y tends to increase at an increasing rate.

Consider the following frequency distribution. What proportion of the observations are at least 15 but less than 18?

The following is a list of five of the world's busiest airports by passenger traffic for 2010. How many more millions of passengers flew out of Atlanta than flew out of Chicago?

The accompanying chart shows the numbers of books written by each author in a collection of cookbooks.What type of chart is this?

Statistics and Data

Numerical Descriptive Measures

Basic Probability Concepts

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Testing

Statistical Inference Concerning Two Populations

Statistical Inference Concerning Variance

Chi-Square Tests

Analysis of Variance

Regression Analysis

Inference With Regression Models

Regression Models for Nonlinear Relationships

Regression Models With Dummy Variables

Time Series and Forecasting

Returns, Index Numbers and Inflation

Nonparametric Tests

Filters