Roa - Ch 2

Which type of question does visual analytics seeks to answer?

Why is it happening?

When you tell a story in a presentation, all of the following are true EXCEPT

a well-told story should have no need for subsequent discussion.

This measure of central tendency is the sum of all the values/observations divided by the number of observations in the data set.

arithmetic mean

Kaplan and Norton developed a report that presents an integrated view of success in the organization called

balanced scorecard-type reports.

This plot is a graphical illustration of several descriptive statistics about a given data set.

box-and-whiskers plot

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.

correlation

Key performance indicators (KPIs) are metrics typically used to measure

internal results.

This measure of dispersion is calculated by simply taking the square root of the variations.

standard deviation

Contextual metadata for a dashboard includes all the following EXCEPT

which operating system is running the dashboard server software.

Which kind of chart is described as an enhanced version of a scatter plot?

bubble chart

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?

pie chart

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?

data granularity

Which characteristic of data means that all the required data elements are included in the data set?

data richness

What is the fundamental challenge of dashboard design?

ensuring that the required information is shown clearly on a single screen

Which type of visualization tool can be very helpful when a data set contains location data?

geographic map

Which of the following is LEAST related to data/information visualization?

graphic artwork

The Internet emerged as a new medium for visualization and brought all the following EXCEPT

new forms of computation of business logic.

What is the management feature of a dashboard?

operational data that identify what actions to take to resolve a problem

Dashboards can be presented at all the following levels EXCEPT

the visual cube level.

Benefits of the latest visual analytics tools, such as SAS Visual Analytics, include all of the following EXCEPT

they explore massive amounts of data in hours, not days.