Set Notation & Venn Diagrams Quiz
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5 questions, one answer each
Each answer is checked as you go, with why.
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1. What does A ∩ B represent?
- A. Elements in A only
- B. Elements in B only
- C. Elements in both A and B
- D. Elements in neither A nor B
2. If A = {2,4,6,8} and n(A) = 4, what does n(A) mean?
- A. The largest element of A
- B. The sum of elements in A
- C. The number of elements in A
- D. The complement of A
3. What does the empty set symbol ∅ mean?
- A. A set containing zero
- B. A set containing every possible element
- C. A set with no elements
- D. The complement of the universal set
4. In a class of 25 students, 16 play football, 10 play basketball, and 5 play both. How many play neither sport?
- A. 4
- B. 5
- C. 6
- D. 10
5. Given E = {1,...,10}, A = {2,4,6,8,10}, B = {1,2,3,4,5}, find A' ∩ B.
- A. {1,3,5}
- B. {2,4}
- C. {6,8,10}
- D. {1,2,3,4,5}