$1\mathrm{.}2$ What is data visualization?

Introduction to data visualization

Data visualization is the display of data in a format, such as a table or chart, that seeks to achieve a goal of conveying particular information to a viewer. Data presented in a text$-$only format often does not convey information well. Ex: Given this text$-$only data on $2013$ median house prices in southern California counties, finding the price for a particular county is inconvenient: Los Angeles

; Orange

; Riverside

; San Bernardino

; San Diego

; Ventura

$.$