Question 1

A __________ ___________ is a table that shows the number of data observations that fall into specific interval.

Accepted Answer

frequency distribution

Question 2

An analyst constructed the following frequency distribution on the monthly returns for 50 selected stocks.   The number of stocks with returns of less than 10% is ______.

Accepted Answer

A)  8 
B)  25 
C)  33 
D)  48 
A)  8 
B)  25 
C)  33 
D)  48 C

Question 3

Johnson and Johnson (JNJ)is a consumer staples company.Consumer staples are products people need and buy even during times of financial hardship.Do you think JNJ will have a volatile stock price? Does the accompanying graph accurately depict the volatility of JNJ stock? Explain.

Accepted Answer

The scale on the vertical axis should begin at zero.Refer to Figure 2.6 where graphs with misleading scales are shown.

Question 4

The following frequency distribution shows the frequency of the asking price,in thousands of dollars,for current homes on the market in a particular city.   What percentage of houses has an asking price under $550,000?

Accepted Answer

A)  50.5% 
B)  69.1% 
C)  89.1% 
D)  95.0% 
A)  50.5% 
B)  69.1% 
C)  89.1% 
D)  95.0%

Question 5

The following histogram represents the number of pages in each book within a collection.What is the frequency of books containing at least 250 but fewer than 300 pages?

Accepted Answer

A)  5 
B)  6 
C)  7 
D)  12 
A)  5 
B)  6 
C)  7 
D)  12

Question 6

The accompanying cumulative relative frequency distribution shows a summary of the scores from an Algebra II exam at a local high school.Twenty students took the exam.   a.Construct the relative frequency distribution.What proportion of students scored between 81 and 90?
b.Construct the frequency distribution.How many students scored between 71 and 80?
c.Construct an ogive.What is the approximate percentage of students that scored less than 85?

Accepted Answer

a.To find the relative frequency for eac

Question 7

The following stem-and-leaf diagram shows the last 20 dividend payments (in cents)paid by Proctor and Gamble.   The most common dividend payment is _____.

Accepted Answer

A)  0.35 
B)  0.40 
C)  0.44 
D)  0.48 
A)  0.35 
B)  0.40 
C)  0.44 
D)  0.48

Question 8

For both qualitative and quantitative data,what is the difference between the relative frequency and the percent frequency?

Accepted Answer

A)  The relative frequency equals the percent frequency multiplied by 100. 
B)  The percent frequency equals the relative frequency multiplied by 100. 
C)  As opposed to the relative frequency,the percent frequency is divided by the number of observations in the data set. 
D)  As opposed to the percent frequency,the relative frequency is divided by the number of observations in the data set. 
A)  The relative frequency equals the percent frequency multiplied by 100. 
B)  The percent frequency equals the relative frequency multiplied by 100. 
C)  As opposed to the relative frequency,the percent frequency is divided by the number of observations in the data set. 
D)  As opposed to the percent frequency,the relative frequency is divided by the number of observations in the data set.

Question 9

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 10

Automobiles traveling on a road with a posted speed limit of 65 miles per hour are checked for speed by a state police radar system.The following table is a frequency distribution of speeds.   When using a polygon to graph quantitative data,what does each point represent?

Accepted Answer

A)  The lower limit of a particular class and its width 
B)  The midpoint of a particular class and its associated frequency or relative frequency 
C)  The midpoint of a particular class and its associated cumulative frequency or cumulative relative frequency 
D)  The upper limit of a particular class and its associated cumulative frequency or cumulative relative frequency 
A)  The lower limit of a particular class and its width 
B)  The midpoint of a particular class and its associated frequency or relative frequency 
C)  The midpoint of a particular class and its associated cumulative frequency or cumulative relative frequency 
D)  The upper limit of a particular class and its associated cumulative frequency or cumulative relative frequency

Question 11

The following table lists some of the busiest ports in the world based on the number of containers in 2010.   Construct a pie chart to summarize the data.Approximately what percent of the total number of containers go through Hong Kong?

Accepted Answer

To construct a pie chart in Excel,select

Question 12

The following is a list of five of the world's busiest airports by passenger traffic for 2010.   The percentage of passenger traffic in the five busiest airports that occurred in Asia is the closest to ___________.

Accepted Answer

A)  18% 
B)  21% 
C)  25% 
D)  38% 
A)  18% 
B)  21% 
C)  25% 
D)  38%

Question 13

For qualitative data,a frequency distribution groups data into __________ and records the number of _____________.

Accepted Answer

categories

Question 14

A stem-and-leaf diagram is useful in that it gives an overall picture of where quantitative data are centered and how the data are dispersed from the center.

Accepted Answer

A) True 
 B)False

Question 15

A car dealership created a scatterplot showing the manufacturer's retail price and profit margin for the cars they have on their lot.   As the manufacturer's suggested retail price increases,the profit margin tends to ___________.

Accepted Answer

A)  increase 
B)  decrease 
C)  stay the same 
D)  None of the above 
A)  increase 
B)  decrease 
C)  stay the same 
D)  None of the above

Question 16

A survey conducted by CBS news asked 1,026 respondents: "What would you do with an unexpected tax refund?" The responses are summarized in the following table.   How many people will either put it in the bank or spend it?

Accepted Answer

A)  421 
B)  411 
C)  113 
D)  482 
A)  421 
B)  411 
C)  113 
D)  482

Question 17

The Statistical Abstract of the United States,2010 provided the following frequency distribution of the number of people who live below the poverty level by region.   What is the percentage of people who live below the poverty level in the West or Midwest?

Accepted Answer

A)  35.96% 
B)  41.87% 
C)  41.58% 
D)  31.96% 
A)  35.96% 
B)  41.87% 
C)  41.58% 
D)  31.96%

Question 18

The following table shows the percentage of e-mail that is sent each day of the business week according to an Intermedia survey.   Which of the following best displays this data?

Accepted Answer

A)  Horizontal bar chart 
B)  Vertical bar chart 
C)  Pie chart 
D)  Histogram 
A)  Horizontal bar chart 
B)  Vertical bar chart 
C)  Pie chart 
D)  Histogram

Question 19

Students in Professor Smith's business statistics course have evaluated the overall effectiveness of the professor's instruction on a five-point scale,where a score of 1 indicates very poor performance and a score of 5 indicates outstanding performance.The raw scores are displayed in the accompanying table:   What is the relative frequency of the students who gave Professor Smith an evaluation of 3?

Accepted Answer

A)  0.3 
B)  0.5 
C)  9 
D)  15 
A)  0.3 
B)  0.5 
C)  9 
D)  15

Question 20

Scatterplot is a graphical tool that is focused on describing one variable.

Accepted Answer

A) True 
 B)False

A _ is a table that shows the number of data observations that fall into specific interval.

An analyst constructed the following frequency distribution on the monthly returns for 50 selected stocks. The number of stocks with returns of less than 10% is ______.

Johnson and Johnson (JNJ)is a consumer staples company.Consumer staples are products people need and buy even during times of financial hardship.Do you think JNJ will have a volatile stock price? Does the accompanying graph accurately depict the volatility of JNJ stock? Explain.

The following frequency distribution shows the frequency of the asking price,in thousands of dollars,for current homes on the market in a particular city. What percentage of houses has an asking price under $550,000?

The following histogram represents the number of pages in each book within a collection.What is the frequency of books containing at least 250 but fewer than 300 pages?

The following stem-and-leaf diagram shows the last 20 dividend payments (in cents)paid by Proctor and Gamble. The most common dividend payment is _____.

For both qualitative and quantitative data,what is the difference between the relative frequency and the percent frequency?

What type of relationship is indicated in the scatterplot?

Automobiles traveling on a road with a posted speed limit of 65 miles per hour are checked for speed by a state police radar system.The following table is a frequency distribution of speeds. When using a polygon to graph quantitative data,what does each point represent?

The following table lists some of the busiest ports in the world based on the number of containers in 2010. Construct a pie chart to summarize the data.Approximately what percent of the total number of containers go through Hong Kong?

The following is a list of five of the world's busiest airports by passenger traffic for 2010. The percentage of passenger traffic in the five busiest airports that occurred in Asia is the closest to ___________.

For qualitative data,a frequency distribution groups data into and records the number of ___.

A stem-and-leaf diagram is useful in that it gives an overall picture of where quantitative data are centered and how the data are dispersed from the center.

A car dealership created a scatterplot showing the manufacturer's retail price and profit margin for the cars they have on their lot. As the manufacturer's suggested retail price increases,the profit margin tends to ___________.

A survey conducted by CBS news asked 1,026 respondents: "What would you do with an unexpected tax refund?" The responses are summarized in the following table. How many people will either put it in the bank or spend it?

The Statistical Abstract of the United States,2010 provided the following frequency distribution of the number of people who live below the poverty level by region. What is the percentage of people who live below the poverty level in the West or Midwest?

The following table shows the percentage of e-mail that is sent each day of the business week according to an Intermedia survey. Which of the following best displays this data?

Scatterplot is a graphical tool that is focused on describing one variable.

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

A __________ ___________ is a table that shows the number of data observations that fall into specific interval.

An analyst constructed the following frequency distribution on the monthly returns for 50 selected stocks. The number of stocks with returns of less than 10% is ______.

Johnson and Johnson (JNJ)is a consumer staples company.Consumer staples are products people need and buy even during times of financial hardship.Do you think JNJ will have a volatile stock price? Does the accompanying graph accurately depict the volatility of JNJ stock? Explain.

The following frequency distribution shows the frequency of the asking price,in thousands of dollars,for current homes on the market in a particular city. What percentage of houses has an asking price under $550,000?

The following histogram represents the number of pages in each book within a collection.What is the frequency of books containing at least 250 but fewer than 300 pages?

The following stem-and-leaf diagram shows the last 20 dividend payments (in cents)paid by Proctor and Gamble. The most common dividend payment is _____.

For both qualitative and quantitative data,what is the difference between the relative frequency and the percent frequency?

What type of relationship is indicated in the scatterplot?

Automobiles traveling on a road with a posted speed limit of 65 miles per hour are checked for speed by a state police radar system.The following table is a frequency distribution of speeds. When using a polygon to graph quantitative data,what does each point represent?

The following table lists some of the busiest ports in the world based on the number of containers in 2010. Construct a pie chart to summarize the data.Approximately what percent of the total number of containers go through Hong Kong?

The following is a list of five of the world's busiest airports by passenger traffic for 2010. The percentage of passenger traffic in the five busiest airports that occurred in Asia is the closest to ___________.

For qualitative data,a frequency distribution groups data into __________ and records the number of _____________.

A stem-and-leaf diagram is useful in that it gives an overall picture of where quantitative data are centered and how the data are dispersed from the center.

A car dealership created a scatterplot showing the manufacturer's retail price and profit margin for the cars they have on their lot. As the manufacturer's suggested retail price increases,the profit margin tends to ___________.

A survey conducted by CBS news asked 1,026 respondents: "What would you do with an unexpected tax refund?" The responses are summarized in the following table. How many people will either put it in the bank or spend it?

The Statistical Abstract of the United States,2010 provided the following frequency distribution of the number of people who live below the poverty level by region. What is the percentage of people who live below the poverty level in the West or Midwest?

The following table shows the percentage of e-mail that is sent each day of the business week according to an Intermedia survey. Which of the following best displays this data?

Scatterplot is a graphical tool that is focused on describing one variable.

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

A _ is a table that shows the number of data observations that fall into specific interval.

For qualitative data,a frequency distribution groups data into and records the number of ___.