Quiz Unions Intersection Complement

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

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

What does this symbol ( ∩ ) represent in set theory?

• Union
• Intersection
• Disjointed
• Subset

What does this symbol ( ∪ ) represent in set theory?

• Union

• Intersection

• Disjointed

• Subset

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

• {3, 5, 7}

• {2, 3, 5, 7}

• {2, 3, 5, 7, 9}

• {1, 2, 3, 5, 7, 9}

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

• {3, 5, 7}
• {2, 3, 5, 7}
• {2, 3, 5, 7, 9}
• {1, 2, 3, 5, 7, 9}

If U = {2,3,5,7,11,13} and C = {2,3,5}, find C'

• {7,11,13}

• {7,9,11,13}

• {2,3,5}

• U

Which of the following is not an element of A = {b, g, 5, 8, 12}}

• c

• 12

• g

• 8

Which symbol translates to "is an element of"

• absolute value

• cardinality

• union

• intersection

• complement

If A={6,8,10,12} then 5 ∈ A

• True

• False