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1. Inclusion

In a survey of 100 students who watch television, 21 watch American Idol,  39 watch Lost, and 8  watch both. How many of the students surveyed watch at least one of the two shows?

 May 5, 2019
 #1
avatar+4296 
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We need to find this...: (Just watch American Idol)+(Just watch Lost)+(Watch both television series). Thus...we have (21-8)+(39-8)+8=13+31+8=52 people.

 May 6, 2019
 #2
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simple! draw a Venn Diagram! Thus, the answer is \(52\) people.

 May 6, 2019
edited by Math.skillz  May 6, 2019

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