Visualization Basics Review

What do marks represent?

• attributes

• visual encoding

• data items

• nothing

What do channels represent?

• semantics

• attributes

• data items

• visual encoding

Effective is defined as matching important data attributes with the highly ranked visual attributes.

• Somewhat True

• True

• Somewhat False

• False

A scatterplot uses what channels?

• horizontal position

• vertical position

• tilt

• none of the following

Which channel is not used to encode categorical attributes?

• spatial region

• shape

• area

• shape

Color luminance is ranked higher than position on an unaligned scale.

• Somewhat True

• True

• Somewhat False

• False

What does Anscombe's Quartet demonstrate?

• Different graphs same statistics

• Same graphs same statistics

• Same graphs different statistics

• Different graphs different statistics

Expressiveness is defined as detecting patterns in a set of outcome of real-world phenomena

• Somewhat True

• True

• Somewhat False

• False

A car dealer wants to understand how which cars are helping him increase sales. What visualization tasks will help him understand this information?

• Identify

• Compare

• Group

• Sort

Bar graphs are preferred over pie charts.

• Somewhat True

• True

• Somewhat False

• False