Intersection and union of 2 sets
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Intros
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Examples
Lessons
- Finding the Intersection & Union of 2 Sets
You are given the following Venn diagram:
- Consider the following:
- Universal Set {1, 2, 3, 4, 5, 6, 7, 8}
- Set A = {1,2,3,4,5,6}
- Set B = {2,4,6,8}
- Consider the following:
- A = {}
- B = {}
- Using the Principle of Inclusion and Exclusion
Kevin asked 50 people if they liked to play soccer or basketball. 10 people didn't like either of them. 25 people liked soccer. 30 people liked basketball. How many people liked both soccer and basketball?
- Willy surveyed 30 people at a restaurant to see if they ordered noodles or rice. 10 people ordered both rice and noodles. 5 people only ordered a drink. 3 people ordered only rice.