Trove: Find and get Australian resources. Books, images, historic newspapers, maps, archives and more. Sanjiv Jaggia. California Polytechnic. State University. Alison Kelly. Suffolk University. Communicating with Numbers. BUSINESS STATISTICS. Business Statistics: Communicating with Numbers Sanjiv Jaggia, Alison Kelly. The first Communicating with Numbers by Sanjiv Jaggia, Alison Kelly Free PDF .

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Business-Statistics-Communicating-with-Numbers-2nd-Edition-Jaggia-Test-Bank .pdf. Uploaded by. 8so8v4 4c0c9y. Full file at. Request PDF on ResearchGate | On Jan 1, , Alison Kelly Hawke and others published Business Statistics - Communicating with Numbers. Book Details Author: Sanjiv Jaggia,Alison Kelly Pages: Publisher: McGraw-Hill Education Brand: English ISBN: Publication Date: Release Date: Description The first edition of Business Statistics: Communicating with Numbers provides a unique, innovative, and.

Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our User Agreement and Privacy Policy. See our Privacy Policy and User Agreement for details. Published on Jun 30, Communicating with Numbers, Download Business Statistics:

True False 2. The relative frequency of a category is calculated by dividing the category's frequency by the total number of observations. True False 3. True False 4. A pie chart is a segmented circle that portrays the categories and relative sizes of some quantitative variable. True False 5. A bar chart depicts the frequency or relative frequency of each category of qualitative data as a bar rising vertically from the horizontal axis.

It is also acceptable for the bar to extend horizontally from the vertical axis. True False Full file at https: A bar chart may be displayed horizontally. True False 7. To approximate the width of a class in the creation of a bar chart, we may use this formula: True False 8. For quantitative data, a relative frequency distribution identifies the proportion of observations that fall into each class.

True False 9. For quantitative data, a cumulative relative frequency distribution records the proportion fraction of values that fall below the upper limit of each class. True False A histogram is a series of rectangles where the width and height of each rectangle represent the frequency or relative frequency and the width of the class, respectively. 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. 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 scatterplot is a graphical tool that helps determine whether or not two quantitative variables are related. When constructing a scatterplot for two quantitative variables, we usually refer to one variable as x and another one as y.

Typically, we graph x on the vertical axis and y on the horizontal axis. When constructing a pie chart, only a few, the most frequent, categories must be included in the pie. When summarizing quantitative data it is always better to have up to 30 classes in a frequency distribution. Scatterplot is a graphical tool that is focused on describing one variable.

Frequency distributions may be used to describe which of the following types of data?

Nominal and ordinal data only B. Nominal and interval data only C. Nominal, ordinal, and interval data only D. Nominal, ordinal, interval, and ratio data All of the above Full file at https: For both qualitative and quantitative data, what is the difference between the relative frequency and the percent frequency? The relative frequency equals the percent frequency multiplied by The percent frequency equals the relative frequency multiplied by As opposed to the relative frequency, the percent frequency is divided by the number of observations in the data set.

As opposed to the percent frequency, the relative frequency is divided by the number of observations in the data set. For which of the following data sets will a pie chart be most useful?

Heights of high school freshmen B. Ambient temperatures in the U. Capitol Building C. Percentage of net sales by product for Lenovo in D. Growth rates of firms in a particular industry Full file at https: 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 shows the results from the survey: The following table shows the results from the survey. The following is a list of five of the world's busiest airports by passenger traffic for The following table shows the categories where the money was directed. Cause Termites Water Damage Mold Earthquake Other How much more did the city spend to fix damage caused by termites compared to the damage caused by water?

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: The raw scores are displayed in the accompanying table. In the following pie chart representing a collection of cookbooks, which author has more titles?

Jeff Smith B. Julia Child C. Rachael Ray D. Paula Deen Full file at https: The accompanying chart shows the numbers of books written by each author in a collection of cookbooks. What type of chart is this? Bar chart for qualitative data B. Bar chart for quantitative data C. Frequency histogram for qualitative data D. Frequency histogram for quantitative data Full file at https: The accompanying chart shows the number of books written by each author in a collection of cookbooks. What type of data is being represented?

Quantitative, ordinal B. Quantitative, ratio C. Qualitative, nominal D. Qualitative, ordinal None of the above Full file at https: All of the above Which of the following best describes a frequency distribution for qualitative data?

It groups data into histograms and records the proportion fraction of observations in each histogram. It groups data into categories and records the number of observations in each category.

It groups data into intervals called classes and records the proportion fraction of observations in each class. It groups data into intervals called classes and records the number of observations in each class.

What graphical tool is best used to display the relative frequency of grouped quantitative data? Ogive B. Pie chart C. Bar chart D. Histogram Full file at https: The following data represent scores on a pop quiz in a statistics section.

The following data represent scores on a pop quiz in a statistics section: Their raw scores are given next. How many students scored at least but less than ? What percent of students scored less than ? What is the approximate relative frequency of students who scored more than but less than ? What graphical tool would you use to display the cumulative relative frequency of the grouped data? Polygon C. Pie chart D. Bar chart Full file at https: Consider the following frequency distribution.

Class Frequency 12 up to 15 3 15 up to 18 6 18 up to 21 3 21 up to 24 4 24 up to 27 4 How many observations are at least 15 but less than 18? Class Frequency 12 up to 15 3 15 up to 18 6 18 up to 21 3 21 up to 24 4 24 up to 27 4 How many observations are less than 21? Class Frequency 12 up to 15 3 15 up to 18 6 18 up to 21 3 21 up to 24 4 24 up to 27 4 What proportion of the observations are at least 15 but less than 18?

Class Frequency 12 up to 15 3 15 up to 18 6 18 up to 21 3 21 up to 24 4 24 up to 27 4 What proportion of the observations are less than 21? The following histogram represents the number of pages in each book within a collection. What is the frequency of books containing at least but fewer than pages? An analyst constructed the following frequency distribution on the monthly returns for 50 selected stocks.

An analyst constructed the following frequency distribution on the monthly returns for 50 selected stocks: 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. Speed miles per hour 45 up to 55 55 up to 65 65 up to 75 75 up to 85 How many of the cars traveled less than 75 miles per hour? Speed miles per hour 45 up to 55 55 up to 65 65 up to 75 75 up to 85 What proportion of the cars traveled at least 55 but less than 65 miles per hour?

Speed miles per hour 45 up to 55 55 up to 65 65 up to 75 75 up to 85 When using a polygon to graph quantitative data, what does each point represent?

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 Full file at https: The accompanying table shows students' scores from the final exam in a history course.

Scores 50 up to 60 60 up to 70 70 up to 80 80 up to 90 90 up to How many of the students scored at least 70 but less than 90?

The following table shows the number of payroll jobs the government added during the years it added jobs since The jobs are in thousands. Jobs Added Frequency up to 5 up to 8 up to 7 up to 5 up to 1 Approximately what percent of the time did the government add , or more jobs? The accompanying relative frequency distribution represents the last year car sales for the sales force at Kelly's Mega Used Car Center. Car Sales Relative Frequency 35 up to 45 0. When displaying quantitative data, what is an ogive used to plot?

Frequency or relative frequency of each class against the midpoint of the corresponding class B. Cumulative frequency or cumulative relative frequency of each class against the upper limit of the corresponding class C.

Frequency or relative frequency of each class against the midpoint of the corresponding class and cumulative frequency or cumulative relative frequency of each class against the upper limit of the corresponding class D. None of the above How does an ogive differ from a polygon? An ogive is used for qualitative data, while a polygon is used for quantitative data. An ogive is used for quantitative data, while a polygon is used for qualitative data.

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.

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. Recent home sales in a suburb of Washington, D. The organization of the Girl Sprouts has completed its annual cookie drive. The sales are reported in the accompanying ogive. Approximate the percentage of girls who sold less than 90 boxes of cookies.

Approximate the percentage of girls who sold more than 70 boxes of cookies. A stem-and-leaf diagram is constructed by separating each value of a data set into two parts. What are these parts? 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 Full file at https: In the accompanying stem-and-leaf diagram, the values in the stem and leaf portions represent 10s and 1s digits, respectively.

Which of the following numbers appears in the stem-and-leaf diagram? In the accompanying stem-and-leaf diagram, the values in the stem-and-leaf portions represent 10s and 1s digits, respectively. How many values are at least 25 but less than 35? Find the frequency associated with data values that are more than The following stem-and-leaf diagram shows the speeds in miles per hour mph of 14 cars approaching a toll booth on a bridge in Oakland, California.

How many of the cars were traveling faster than 25 mph but slower than 40 mph? The following stem-and-leaf diagram shows the last 20 dividend payments in cents paid by Proctor and Gamble.

What may be revealed from a scatterplot? No relationship between two variables B. A linear relationship between two variables C. A curvilinear relationship between two variables D.

What type of relationship is indicated in the scatterplot? No relationship B. A negative linear relationship C. A negative curvilinear relationship D.

A positive linear or curvilinear relationship Full file at https: A positive linear relationship D. A positive curvilinear relationship Full file at https: Use the following data to construct a scatterplot.

What type of relationship is implied? A positive relationship C. A negative relationship D. There is not enough information to answer Not enough information to answer Full file at https: A car dealership created a scatterplot showing the manufacturer's retail price and profit margin for the cars they have on their lot. The statistics professor has kept attendance records and recorded the number of absent students per class. The recorded data is displayed in the following histogram with the frequency of each number of absent students shown above the bars.

How many statistics classes had three or more students absent? The following table shows the percentage of e-mail that is sent each day of the business week according to an Intermedia survey. Horizontal bar chart B. Vertical bar chart C. The following frequency distribution displays the weekly sales of a certain brand of television at an electronics store.

Number Sold Frequency May 3 Oct 7 Nov 14 22 4 How many weeks of data are included in this frequency distribution? 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. A survey conducted by CBS news asked 1, respondents: The manager at a water park constructed the following frequency distribution to summarize attendance in July and August.

Attendance Frequency 1, up to 1, 5 1, up to 1, 6 1, up to 1, 10 1, up to 2, 20 2, up to 2, 15 2, up to 2, 4 What of the following is the most likely attendance range? The Statistical Abstract of the United States, provided the following frequency distribution of the number of people who live below the poverty level by region. Number of People in Region s Northeast 6, Midwest 7, South 15, West 8, What is the percentage of people who live below the poverty level in the West or Midwest?

Consider the following stem-and-leaf diagram. Capitol Building C. Percentage of net sales by product for Lenovo in D. Growth rates of firms in a particular industry Full file at https: 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 shows the results from the survey: The following table shows the results from the survey. The following is a list of five of the world's busiest airports by passenger traffic for The following table shows the categories where the money was directed. Cause Termites Water Damage Mold Earthquake Other How much more did the city spend to fix damage caused by termites compared to the damage caused by water?

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: The raw scores are displayed in the accompanying table. In the following pie chart representing a collection of cookbooks, which author has more titles? Jeff Smith B. Julia Child C. Rachael Ray D. Paula Deen Full file at https: The accompanying chart shows the numbers of books written by each author in a collection of cookbooks.

What type of chart is this? Bar chart for qualitative data B. Bar chart for quantitative data C. Frequency histogram for qualitative data D. Frequency histogram for quantitative data Full file at https: The accompanying chart shows the number of books written by each author in a collection of cookbooks.

What type of data is being represented? Quantitative, ordinal B. Quantitative, ratio C. Qualitative, nominal D. Qualitative, ordinal None of the above Full file at https: All of the above Which of the following best describes a frequency distribution for qualitative data?

It groups data into histograms and records the proportion fraction of observations in each histogram. It groups data into categories and records the number of observations in each category. It groups data into intervals called classes and records the proportion fraction of observations in each class. It groups data into intervals called classes and records the number of observations in each class.

What graphical tool is best used to display the relative frequency of grouped quantitative data? Ogive B. Pie chart C. Bar chart D. Histogram Full file at https: The following data represent scores on a pop quiz in a statistics section. The following data represent scores on a pop quiz in a statistics section: Their raw scores are given next.

How many students scored at least but less than ? What percent of students scored less than ? What is the approximate relative frequency of students who scored more than but less than ? What graphical tool would you use to display the cumulative relative frequency of the grouped data? Polygon C. Pie chart D. Bar chart Full file at https: Consider the following frequency distribution. Class Frequency 12 up to 15 3 15 up to 18 6 18 up to 21 3 21 up to 24 4 24 up to 27 4 How many observations are at least 15 but less than 18?

Class Frequency 12 up to 15 3 15 up to 18 6 18 up to 21 3 21 up to 24 4 24 up to 27 4 How many observations are less than 21? Class Frequency 12 up to 15 3 15 up to 18 6 18 up to 21 3 21 up to 24 4 24 up to 27 4 What proportion of the observations are at least 15 but less than 18?

Class Frequency 12 up to 15 3 15 up to 18 6 18 up to 21 3 21 up to 24 4 24 up to 27 4 What proportion of the observations are less than 21? The following histogram represents the number of pages in each book within a collection. What is the frequency of books containing at least but fewer than pages?

An analyst constructed the following frequency distribution on the monthly returns for 50 selected stocks. An analyst constructed the following frequency distribution on the monthly returns for 50 selected stocks: 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. Speed miles per hour 45 up to 55 55 up to 65 65 up to 75 75 up to 85 How many of the cars traveled less than 75 miles per hour?

Speed miles per hour 45 up to 55 55 up to 65 65 up to 75 75 up to 85 What proportion of the cars traveled at least 55 but less than 65 miles per hour? Speed miles per hour 45 up to 55 55 up to 65 65 up to 75 75 up to 85 When using a polygon to graph quantitative data, what does each point represent?

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 Full file at https: The accompanying table shows students' scores from the final exam in a history course.

Scores 50 up to 60 60 up to 70 70 up to 80 80 up to 90 90 up to How many of the students scored at least 70 but less than 90? The following table shows the number of payroll jobs the government added during the years it added jobs since The jobs are in thousands. Jobs Added Frequency up to 5 up to 8 up to 7 up to 5 up to 1 Approximately what percent of the time did the government add , or more jobs?

The accompanying relative frequency distribution represents the last year car sales for the sales force at Kelly's Mega Used Car Center. Car Sales Relative Frequency 35 up to 45 0.

When displaying quantitative data, what is an ogive used to plot? Frequency or relative frequency of each class against the midpoint of the corresponding class B. Cumulative frequency or cumulative relative frequency of each class against the upper limit of the corresponding class C. Frequency or relative frequency of each class against the midpoint of the corresponding class and cumulative frequency or cumulative relative frequency of each class against the upper limit of the corresponding class D.

None of the above How does an ogive differ from a polygon? An ogive is used for qualitative data, while a polygon is used for quantitative data. An ogive is used for quantitative data, while a polygon is used for qualitative data. 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.

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. Recent home sales in a suburb of Washington, D. The organization of the Girl Sprouts has completed its annual cookie drive. The sales are reported in the accompanying ogive.

Approximate the percentage of girls who sold less than 90 boxes of cookies.

Approximate the percentage of girls who sold more than 70 boxes of cookies. A stem-and-leaf diagram is constructed by separating each value of a data set into two parts. What are these parts? 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 Full file at https: In the accompanying stem-and-leaf diagram, the values in the stem and leaf portions represent 10s and 1s digits, respectively. Which of the following numbers appears in the stem-and-leaf diagram? In the accompanying stem-and-leaf diagram, the values in the stem-and-leaf portions represent 10s and 1s digits, respectively.

How many values are at least 25 but less than 35? Find the frequency associated with data values that are more than The following stem-and-leaf diagram shows the speeds in miles per hour mph of 14 cars approaching a toll booth on a bridge in Oakland, California. How many of the cars were traveling faster than 25 mph but slower than 40 mph? The following stem-and-leaf diagram shows the last 20 dividend payments in cents paid by Proctor and Gamble.

What may be revealed from a scatterplot? No relationship between two variables B. A linear relationship between two variables C.

A curvilinear relationship between two variables D. What type of relationship is indicated in the scatterplot? No relationship B. A negative linear relationship C. A negative curvilinear relationship D.

A positive linear or curvilinear relationship Full file at https: A positive linear relationship D. A positive curvilinear relationship Full file at https: Use the following data to construct a scatterplot. What type of relationship is implied? A positive relationship C. A negative relationship D.

There is not enough information to answer Not enough information to answer Full file at https: A car dealership created a scatterplot showing the manufacturer's retail price and profit margin for the cars they have on their lot. The statistics professor has kept attendance records and recorded the number of absent students per class.

The recorded data is displayed in the following histogram with the frequency of each number of absent students shown above the bars. How many statistics classes had three or more students absent? The following table shows the percentage of e-mail that is sent each day of the business week according to an Intermedia survey.

Horizontal bar chart B. Vertical bar chart C. The following frequency distribution displays the weekly sales of a certain brand of television at an electronics store.

Number Sold Frequency May 3 Oct 7 Nov 14 22 4 How many weeks of data are included in this frequency distribution? 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.

A survey conducted by CBS news asked 1, respondents: The manager at a water park constructed the following frequency distribution to summarize attendance in July and August.

Attendance Frequency 1, up to 1, 5 1, up to 1, 6 1, up to 1, 10 1, up to 2, 20 2, up to 2, 15 2, up to 2, 4 What of the following is the most likely attendance range?

The Statistical Abstract of the United States, provided the following frequency distribution of the number of people who live below the poverty level by region. Number of People in Region s Northeast 6, Midwest 7, South 15, West 8, What is the percentage of people who live below the poverty level in the West or Midwest? Consider the following stem-and-leaf diagram. Which data value occurs most often?

Which of the following statements is correct? There are a total of 10 data values in this data set. The data value that occurs most often is This largest data value is The range contains the most values.

Education and Income. A survey of unemployed people was completed at a job fair. Each person was asked to categorize his or her job interests. The accompanying relative frequency distribution was constructed. Field Relative Frequency Management 0. Construct the corresponding frequency distribution. How many of these people designated that the computer and mathematical industry was their job interest? Construct a pie chart. 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. Construct a frequency and relative frequency distribution of the hair color of the stylist's customers. Which hair color is the most common among the stylist's customers? Create a bar chart to display the frequency distribution. How many customers had black hair? The following table lists some of the busiest ports in the world based on the number of containers in Approximately what percent of the total number of containers go through Hong Kong?

Johnson and Johnson JNJ is a consumer staples company. Consumer staples are products people need and download 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? 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 Age Frequency 16 to 19 4, 20 to 24 13, 25 to 34 30, 35 to 44 30, 45 to 54 32, 55 and over 28, a.

Construct a relative frequency distribution. What proportion of workers is between 20 and 24 years old? Construct a cumulative relative frequency distribution. What proportion of workers is younger than 35 years old? Construct a relative frequency histogram. The following table displays the top 40 American League batting averages of the season.

Construct frequency, relative frequency, and cumulative relative frequency distributions that group the data in classes of 0. How many of these players have a batting average above 0. What proportion of these players has a batting average of at least 0.

What percentage of these players has a batting average below 0. Is the distribution symmetric? If not, is it positively or negatively skewed?

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