QUESTIONS AND CORRECT ANSWERS
In language of data visualization, an idiom is:
A. The amount of information density in a single image
B. A tool that serves well for one task but is poorly suited for another
C. A distinct approach to creating and manipulating visual representations
D. A verbal analysis of big data - correct answer c
Visualization is appropriate when:
A. We seek to analyze large datasets
B. We want to augment human capabilities
C. Problems are ill defined
D. All of the above - correct answer d
The magical number seven, plus or minus two refers to __________
A. The optimal number of features in a visualization
B. The number of items that can be held in the average human's working memory
C. The ratio of rods to cones in the human eye
D. The minimum number of idioms that should be considered for a given visualization -
correct answer b
Which of the following is a resource limitation that should be considered when designing a
visualization?
A. Human perceptual and cognitive capacity
,B. Computational capacity
C. Display capacity
D. All of the above - correct answer d
The search for hue boundary in which panel is preattentive? - correct answer the image
with all blue on the left and all red on the right
__________ are rapid eye movements to can a target during fixation.
A. Vergence movements
B. Parafovea movements
C. Saccadic movements
D. Fovea movements - correct answer c
When evaluating information presented in given visualization, which of the following would
likely be associated with the largest error by the observer?
A. Position
B. Volume
C. Color hue
D. Length - correct answer colorhue
A dataset consisting of customers and their relationships to one another would likely be what
dataset type?
A. Geometry
B. Field
C. Network
D. Table - correct answer c
, In a tabular dataset, a _____ represents an item and a _____ represents an attribute.
A. Cell, row
B. Column, row
C. Column, cell
D. Row, column - correct answer d
The variable item_count in a business dataset would likely be a _____ variable.
A. Ordinal
B. Quantitative
C. Cyclic
D. Categorical - correct answer b
True or false, tableau is capable of connecting to a microsoft access database. - correct
answer t
A map in which a color gradient indicates the magnitude of some quantitative variable is
called a _____ map.
A. Simple
B. Chromatic
C. Cloropleth
D. Gradient-fill - correct answer c
A __________ is a basic graphical element in an image, while a __________ is a way to
control the appearance of those elements.
A. Channel, mark
B. Mark, channel