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Exam 4: Displaying and Describing Categorical Data

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Question 1

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A automobile marketing firm conducts a study to see what types of cars people owned before buying an American car.The results are shown below. The relative frequency of those who owned Japanese cars previously who now bought American cars is

A) 59.9 %
B) 29.6%
C) 5.7%
D) 14.9%
E) 2.9%

F) C) and D)
G) B) and E)

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Question 2

Multiple Choice

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A full service brokerage firm gathered information on how their clients were investing for retirement.Based on age, clients were categorized according to where the largest Percentage of their retirement portfolio was invested and shown in the table below. 4-14 Chapter 4 Displaying and Describing Categorical Data Of the clients over age 50, the percentage who invest in mutual funds is

A) 3.1% (34/64) .
B) 33.3% (34/102) .
C) 18.1% (34/188) .
D) 34% (64/188) .
E) 54.3% (102/188) .

F) A) and B)
G) B) and E)

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B

Question 3

Multiple Choice

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A restaurant uses comment cards to get feedback from its customers about newly added items to the menu.It recently introduced homemade organic veggie burgers. Customers who tried the new burger were asked if they would order it again.The data Are summarized in the table below.What percentage of customers would most likely or Definitely order the veggie burger again?

Based on the side-by-side bar chart summarizing consumer preferences for various brands of digital cameras by gender, which of the following statements is (are) true?

A large national retailer of electronics conducted a survey to determine consumer preferences for various brands of digital cameras and the data are summarized in the table Shown below. Of the consumers who are male, the percentage who prefer Pentax is

A full service brokerage firm gathered information on how their clients were investing for retirement.Based on age, clients were categorized according to where the largest percentage of their retirement portfolio was invested.The table below summarized the data. -What is the marginal distribution of age?

Identify the variables and tell whether each is categorical or quantitative.

A large national retailer of electronics conducted a survey to determine consumer preferences for various brands of digital cameras and the data are summarized in the table Shown below. The percentage of consumers who are male and prefer Pentax is

Consider the following side by side bar chart for the data above: Does the chart indicate that mode of investment is independent of age? Explain.

A regional survey was carried out to gauge public opinion on the controversial Arizona Immigration Law.The results are displayed in the segmented bar chart below. Which of the following statements is true?

A regional survey was carried out to gauge public opinion on the controversial Arizona Immigration Law (results shown below) .Of respondents who are Democrat, What percent oppose the law?

In May, 2010, the Pew Research Center for the People & the Press carried out a national survey to gauge opinion on the Arizona Immigration Law.Responses (Favor, Oppose, Don't Know) were examined according to groups defined by political party Affiliation (Democrat, Republican, Independent) .Which of the following would be Appropriate for displaying these data?

A full service brokerage firm gathered information on how their clients were investing for retirement.Based on age, clients were categorized according to where the largest percentage of their retirement portfolio was invested.The table below summarized the data. -Find each of the following percentages. a.What percent of the clients are over age 50 who invests in mutual funds? b.What percent of clients over age 50 invest in mutual funds? c.What percent of the mutual fund investors are over age 50?

Write a sentence or two about the conditional relative frequency distribution of mode of investment for clients age 50 or younger.

Find each of the following percentages. a.What percent of the responses were males who prefer Pentax? b.What percent of the male responses prefer Pentax? c.What percent of the consumers who choose Pentax were males?

A full service brokerage firm gathered information on how their clients were investing for retirement.Based on age, clients were categorized according to where the largest percentage of their retirement portfolio was invested.The table below summarized the data. -Identify the variables and tell whether each is categorical or quantitative.

Write a sentence or two about the conditional relative frequency distribution of the brands among female respondents.

A regional survey was carried out to gauge public opinion on the controversial Arizona Immigration Law (results shown below) .What percent oppose the law?

A large national retailer of electronics conducted a survey to determine consumer preferences for various brands of digital cameras and the data are summarized in the table Shown below.Of the consumers who prefer Pentax, what percentage is male?

A regional survey was carried out to gauge public opinion on the controversial Arizona Immigration Law (results shown below) .Of respondents who oppose the law, What percent is Democrat?