Find $\left| A _ { 1 } \cup A _ { 2 } \cup A _ { 3 } \cup A _ { 4 } \right|$

question 113

Short Answer

Find $\left| A _ { 1 } \cup A _ { 2 } \cup A _ { 3 } \cup A _ { 4 } \right|$ if each set A_i has 150 elements, each intersection of two sets has 80 elements, each intersection of three sets has 20 elements, and there are no elements in all four sets.

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Definitions:

Content Analysis

A research method used to identify the presence of certain words, themes, or concepts within qualitative data sets, such as texts, images, or media.

Social Media Platforms

Online networks where users create, share, and exchange information and ideas in virtual communities.

Second-Level Agenda-Setting

A theory in communication that not only does the media influence what topics people think about (first level), but also how people think about these topics in terms of attributes and assessments (second level).

News Story

A factual report on recent events or information, typically presented in newspapers, online, or on television and radio.