Chapter 2
30) Which type of question does visual analytics seeks to answer? A) Why is it happening? B) What happened yesterday? C) What is happening today? D) When did it happen?
Answer: A
33) What is the management feature of a dashboard? A) operational data that identify what actions to take to resolve a problem B) summarized dimensional data to analyze the root cause of problems C) summarized dimensional data to monitor key performance metrics D) graphical, abstracted data to monitor key performance metrics
Answer: A
38) This measure of dispersion is calculated by simply taking the square root of the variations A) standard deviation B) range C) variance D) arithmetic mean.
Answer: A
23) Kaplan and Norton developed a report that presents an integrated view of success in the organization called A) metric management reports B) balanced scorecard-type reports. C) dashboard-type reports. D) visual reports..
Answer: B
29) Which type of visualization tool can be very helpful when a data set contains location data? A) bar chart B) geographic map C) highlight table D) tree map
Answer: B
31) When you tell a story in a presentation, all of the following are true EXCEPT A) a story should make sense and order out of a lot of background noise B) a well-told story should have no need for subsequent discussion. C) stories and their lessons should be easy to remember. D) the outcome and reasons for it should be clear at the end of your story..
Answer: B
35) Contextual metadata for a dashboard includes all the following EXCEPT A) whether any high-value transactions that would skew the overall trends were rejected as a part of the loading process B) which operating system is running the dashboard server software. C) whether the dashboard is presenting "fresh" or "stale" information. D) when the data warehouse was last refreshed..
Answer: B
40) This technique makes no a priori assumption of whether one variable is dependent on the other(s) and is not concerned with the relationship between variables; instead it gives an estimate on the degree of association between the variables. A) regression B) correlation C) means test D) multiple regression.
Answer: B
47) ________ charts are useful in displaying nominal data or numerical data that splits nicely into erent categories so you can quickly see comparative results and trends
Answer: Bar
58) ________ charts are effective when you have nominal data or numerical data that splits nicely into erent categories so you can quickly see comparative results and trends within your data
Answer: Bar
21) Which characteristic of data means that all the required data elements are included in the data set? A) data source reliability B) data accessibility C) data richness D) data granularity
Answer: C
26) The Internet emerged as a new medium for visualization and brought all the following EXCEPT A) worldwide digital distribution of visualization B) immersive environments for consuming data. C) new forms of computation of business logic. D) new graphics displays through PC displays..
Answer: C
28) Which type of visualization tool can be very helpful when the intention is to show relative proportions of dollars per department allocated by a university administration? A) heat map B) bullet C) pie chart D) bubble chart
Answer: C
32) Benefits of the latest visual analytics tools, such as SAS Visual Analytics, include all of the following EXCEPT A) mobile platforms such as the iPhone are supported by these products B) it is easier to spot useful patterns and trends in the data. C) they explore massive amounts of data in hours, not days. D) there is less demand on IT departments for reports..
Answer: C
36) Dashboards can be presented at all the following levels EXCEPT A) the visual dashboard level B) the static report level. C) the visual cube level. D) the self-service cube level..
Answer: C
39) This plot is a graphical illustration of several descriptive statistics about a given data set A) pie chart B) bar graph C) box-and-whiskers plot D) kurtosis.
Answer: C
22) Key performance indicators (KPIs) are metrics typically used to measure A) database responsiveness B) qualitative feedback. C) external results. D) internal results..
Answer: D
24) Which characteristic of data requires that the variables and data values be defined at the lowest (or as low as required) level of detail for the intended use of the data? A) data source reliability B) data accessibility C) data richness D) data granularity
Answer: D
25) Which of the following is LEAST related to data/information visualization? A) information graphics B) scientific visualization C) statistical graphics D) graphic artwork
Answer: D
27) Which kind of chart is described as an enhanced version of a scatter plot? A) heat map B) bullet C) pie chart D) bubble chart
Answer: D
34) What is the fundamental challenge of dashboard design? A) ensuring that users across the organization have access to it B) ensuring that the organization has the appropriate hardware onsite to support it C) ensuring that the organization has access to the latest Web browsers D) ensuring that the required information is shown clearly on a single screen
Answer: D
37) This measure of central tendency is the sum of all the values/observations divided by the number of observations in the data set A) dispersion B) mode C) median D) arithmetic mean.
Answer: D
11) When telling a story during a presentation, it is best to avoid describing hurdles that your character must overcome, to avoid souring the mood
Answer: FALSE
12) Visual analytics is aimed at answering, "What is it happening?" and is usually associated with business analytics
Answer: FALSE
13) Dashboards provide visual displays of important information that is consolidated and arranged across several screens to maintain data order
Answer: FALSE
14) In the Dallas Cowboys case study, the focus was on using data analytics to decide which players would play every week
Answer: FALSE
15) Data source reliability means that data are correct and are a good match for the analytics problem
Answer: FALSE
19) Nominal data represent the labels of multiple classes used to divide a variable into specific groups
Answer: FALSE
2) To respond to its market challenges, SiriusXM decided to focus on manufacturing efficiency
Answer: FALSE
3) Data is the contextualization of information, that is, information set in context
Answer: FALSE
6) The data storage component of a business reporting system builds the various reports and hosts them for, or disseminates them to users; it also provides notification, annotation, collaboration, and other services.
Answer: FALSE
60) ________ charts are a special case of horizontal bar charts that are used to portray project timelines, project tasks/activity durations, and overlap among the tasks/activities
Answer: Gantt
42) ________ statistics is about drawing conclusions about the characteristics of the population
Answer: Inferential
46) ________ regression is a very popular, statistically sound, probability-based classification algorithm that employs supervised learning
Answer: Logistic
49) ________ are typically used together with other charts and graphs, as opposed to by themselves, and show postal codes, country names, etc
Answer: Maps
44) ________ management reports are used to manage business performance through outcome-oriented metrics in many organizations
Answer: Metric
48) ________ charts or network diagrams show precedence relationships among the project activities/tasks
Answer: PERT
59) ________ plots are often used to explore the relationship between two or three variables (in 2-D or 2-D visuals)
Answer: Scatter
1) One of SiriusXM's challenges was tracking potential customers when cars were sold
Answer: TRUE
10) Visualization ers from traditional charts and graphs in complexity of data sets and use of multiple dimensions and measures
Answer: TRUE
16) Data accessibility means that the data are easily and readily obtainable
Answer: TRUE
17) Structured data is what data mining algorithms use and can be classified as categorical or numeric
Answer: TRUE
18) Interval data are variables that can be measured on interval scales
Answer: TRUE
20) Descriptive statistics is all about describing the sample data on hand
Answer: TRUE
4) Data is the main ingredient for any BI, data science, and business analytics initiative
Answer: TRUE
5) Predictive algorithms generally require a flat file with a target variable, so making data analytics ready for prediction means that data sets must be transformed into a flat-file format and made ready for ingestion into those predictive algorithms
Answer: TRUE
7) In the FEMA case study, the BureauNet software was the primary reason behind the increased speed and relevance of the reports FEMA employees received
Answer: TRUE
8) Google Maps has set new standards for data visualization with its intuitive Web mapping software
Answer: TRUE
9) There are basic chart types and specialized chart types; A Gantt chart is a specialized chart type.
Answer: TRUE
54) ________ series forecasting is the use of mathematical modeling to predict future values of the variable of interest based on previously observed values
Answer: Time
55) Information dashboards enable ________ operations that allow the users to view underlying data sources and obtain more detail
Answer: drill-down/drill-through
45) When validating the assumptions of a regression, ________ assumes that the relationship between the response variable and the explanatory variables are linear
Answer: linearity
56) With a dashboard, information on sources of the data being presented, the quality and currency of underlying data provide contextual ________ for users
Answer: metadata
53) With dashboards, the layer of information that uses graphical, abstracted data to keep tabs on key performance metrics is the ________ layer
Answer: monitoring
57) When validating the assumptions of a regression, ________ assumes that the errors of the response variable are normally distributed
Answer: normality
51) Visual analytics is widely regarded as the combination of visualization and ________ analytics
Answer: predictive
43) Due to the ________ expansion of information technology coupled with the need for improved competitiveness in business, there has been an increase in the use of computing power to produce unified reports that join erent views of the enterprise in one place
Answer: rapid
41) A(n) ________ is a communication artifact, concerning business matters, prepared with the specific intention of relaying information in a presentable form
Answer: report
52) Dashboards present visual displays of important information that are consolidated and arranged on a single ________
Answer: screen
50) Typical charts, graphs, and other visual elements used in visualization-based applications usually involve ________ dimensions
Answer: two