A dashboard designer is laying out a set of related charts on a page. The designer wants viewers to perceive the charts as belonging to the same group or section. Which Gestalt principle should be applied?

Proximity — place the related charts close together with clear spacing from other sections

Continuity — arrange the charts in a diagonal line

Similarity — make all charts the same size and color

Closure — add a border around each individual chart

A data analyst is creating a presentation for a non-technical audience. The analyst wants to show the year-over-year growth of revenue for the past 5 years. The data shows a steady increase from $1M to $1.5M. Which chart is most effective for this audience?

A bar chart with the y-axis starting at $900,000 to emphasize the growth

A 3D area chart with a perspective view

A pie chart showing the revenue for each year as a slice

A simple line chart with year on the x-axis and revenue on the y-axis, starting at $0

What is the main benefit of using a clear title and axis labels in a visualization?

They help the viewer understand the context and meaning of the data

They allow the chart to be used in multiple presentations

They reduce the need for a legend

They make the chart more colorful and attractive

Dell Data Science Optimize

Domain 6Objective 1

Perception and Visualization DATA-SCIENCE-OPTIMIZE Practice Questions (Page 1)

Part of the Data Visualization domain, which accounts for 12% of the DATA-SCIENCE-OPTIMIZE exam.

28questions here

6free pages

6concepts

12%of the exam

Questions 1–5

1application · medium
A dashboard designer is laying out a set of related charts on a page. The designer wants viewers to perceive the charts as belonging to the same group or section. Which Gestalt principle should be applied?
Select an answer first
2application · medium
A data analyst is creating a presentation for a non-technical audience. The analyst wants to show the year-over-year growth of revenue for the past 5 years. The data shows a steady increase from $1M to $1.5M. Which chart is most effective for this audience?
Select an answer first
3foundation · easy
Which visual encoding is most effective for comparing the magnitude of values across categories in a bar chart?
Select an answer first
4foundation · easy
Which chart type is most appropriate for showing the proportion of total sales contributed by each product category?
Select an answer first
5foundation · easy
What is the main benefit of using a clear title and axis labels in a visualization?
Select an answer first

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Perception and Visualization DATA-SCIENCE-OPTIMIZE Practice Questions (Page 1)

Questions 1–5

A dashboard designer is laying out a set of related charts on a page. The designer wants viewers to perceive the charts as belonging to the same group or section. Which Gestalt principle should be applied?

A data analyst is creating a presentation for a non-technical audience. The analyst wants to show the year-over-year growth of revenue for the past 5 years. The data shows a steady increase from $1M to $1.5M. Which chart is most effective for this audience?

Which visual encoding is most effective for comparing the magnitude of values across categories in a bar chart?

Which chart type is most appropriate for showing the proportion of total sales contributed by each product category?

What is the main benefit of using a clear title and axis labels in a visualization?

Keep studying — Data Visualization