Set Notation / Holiday Trivia

What does this symbol ( ∪ ) represent?

• Subset

• Intersection

• Union

• Null

What does this symbol ( ∩ ) represent?

• Intersection

• Union

• Subset

• Null

If A = {1, 3, 5, 7, 9} and B = {2, 3, 5, 7}, what is A ∩ B?

• {2, 3, 5, 7}

• {3, 5, 7}

• {2, 3, 5, 7, 9}

• {1, 2, 3, 5, 7, 9}

What type of set is denoted as either { } or ∅?

• Universal Set
• Empty (or Null) Set
• Disjointed Set
• Complement of a Set

Find n(A) when

A = {14, 16, 18, 20, 22, 24}

• 6

• 14

• 24

• 2

List the elements of the vowels in the word "circumference".

• {e, e, e, i, u}

• {c, m, f, r, n}

• { }

• {i, u, e}

What is the correct symbol for element?

• $\cap$

• $\subseteq$

• $\in$

• $\Sigma$

Which one is an example of an infinite set?

• {factors of 10}

• {even numbers between 9 and 15}

• {number of students in IEP}

• {multiples of 7}

Which answer is an example of a finite set?

• {prime numbers}

• {5, 6, 7, 8, 9, 10, 11, ...}

• {perfect squares between 50 and 80}

• {odd integers}