Set Theory in 30 Minutes Quiz

What is a set?

• A collection of colors

• A collection of vehicles

• A collection of animals

• A collection of objects

What is the cardinality of a set containing 1, 2, and 3?

• 2

• 1

• 3

• 4

What symbol is used to denote that an element belongs to a set?

• +

• -

• >

• ∈

What is the intersection of the sets containing {1, 2, 3} and {2, 3, 4}?

• {1, 4}

• {2, 3}

• {3}

• {1, 2, 3, 4}

What is the union of the sets containing {1, 2, 3} and {3, 4, 5}?

• {1, 2, 3, 4, 5}

• {3, 4, 5}

• {1, 2, 3}

• {1, 2, 4, 5}

What is the cardinality of the empty set?

• 3

• 0

• 1

• 2

What is the subset of a set that contains no elements?

• Singleton set

• Universal set

• Infinite set

• Empty set

What is the identity for the cardinality of the union and intersection of two sets?

• Cardinality of union = Cardinality of set A + Cardinality of set B - Cardinality of intersection

• Cardinality of union = Cardinality of set A - Cardinality of set B

• Cardinality of union = Cardinality of set A + Cardinality of set B

• Cardinality of union = Cardinality of intersection

What is the property that allows us to exchange the order of union and intersection?

• Distributivity

• Identity

• Associativity

• Commutativity

If all the elements of set A are also present in another set B, then A is said to be a(n) _____ of B

• Universal set

• Equal set

• Proper subset

• Subset