Jaggia, Alison Kelly, Kevin Lertwachara, Leida Chen (All Chapters
Answers at the end of each Chapter)
1) Which of the following broad categories is not a type of analytic technique?
A) manipulative analytics
B) descriptive analytics
C) predictive analytics
D) prescriptive analytics
2) The people of Appleton, WI represent the __________, whereas we analyze the
education level of a subset or __________ to make inferences about the population.
A) information; cross-section
B) population; information
C) items; sample
D) population; sample
3) A massive volume of both structured and unstructured data that is extremely difficult to
manage, process, and analyze is known by which catch phrase?
A) wrangling
B) big data
C) data mining
D) general data
4) The 2019 FIFA Women’s World Cup contained 52 matches in total with 24 teams
competing. The use of __________ data will display team standings during and at the end of the
tournament.
A) split-section
B) organized
C) cross-sectional
D) numerical
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,5) According to a report in US Today, 42% of young people between the ages of 17–30 have
at least two tattoos. What does the 42% represent?
A) categorical data
B) random data
C) population
D) sample set
6) According to a report in US Today, 38% of young people between the ages of 18–29 have
at least one tattoo. What does the 38% represent?
A) categorical data
B) random data
C) population
D) sample set
7) According to a report in US Today, 45% of young people between the ages of 18–28 have
at least two tattoos. What do the overall observations in the study represent?
A) categorical data
B) random data
C) population
D) sample set
8) According to a report in US Today, 38% of young people between the ages of 18–29 have
at least one tattoo. What do the overall observations in the study represent?
A) categorical data
B) random data
C) population
D) sample set
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,9) Mary asks her friends on Facebook for recommendations for the best restaurants in
Chicago. The results are then placed in a table for review. What does the data represent?
A) time-series data
B) cross-sectional data
C) numerical data
D) quantitative data
10) In big data, the most important aspect of any analytic initiative is __________.
A) volume
B) veracity
C) values
D) variety
11) What term refers to the credibility and quality of data?
A) volume
B) veracity
C) values
D) variety
12) When compiling data, it is important to know data comes in all types, forms, and
granularity. This is known as
A) volume.
B) veracity.
C) values.
D) variety.
13) A New York Times article notes that there are an increasing number of people calling for
tech companies to ease their grip on the personal data of consumers. The concern is that a
handful of companies holds most of the data. The immense amount of data is also called
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, A) volume.
B) veracity.
C) values.
D) variety.
14) Unstructured data is best defined as
A) not conforming to a predefined, row-column format.
B) not conforming to a way to analyze data.
C) conforming to a predefined, row-column format.
D) conforming to a managing velocity.
15) Tobias Smith is working with his company’s data to examine inventory information. His
intent is to use the variables to express ratios on inventory turnover. Based on this description,
what is the strongest level of measurement being used?
A) continuous variable
B) interval scale
C) categorical
D) ratio scale
16) The height of plants is what type of variable?
A) distraction
B) discrete numerical
C) categorical
D) continuous numerical
17) The time in hours spent sleeping per day is what kind of variable?
A) distraction
B) discrete numerical
C) categorical
D) continuous numerical
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