Video Lesson with Quiz

What is a set?

• A collection of objects

• A collection of animals

• A collection of colors

• A collection of cars

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

• ∈

• +

• -

• >

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

• 4

• 1

• 2

• 3

What is the intersection of the sets containing odd numbers and even numbers?

• The set of integers

• The set of all natural numbers

• The empty set

• The set of prime numbers

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

• Cardinality of union = Cardinality of intersection

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

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

• Associative property

• Distributive property

• Commutative property

• Identity property

What is the intersection of the sets containing summer and winter, and days warmer than 20 degrees?

• The set of summer days

• The set of winter days

• The empty set

• The set of all days in a year

What is the result of taking the union of a set with the empty set?

• The empty set

• The original set

• A new set with all elements doubled

• A new set with all elements squared

What is the subset of any set with itself?

• A new set with all elements squared

• A new set with all elements doubled

• The original set

• The empty set

What is the unique property of the empty set?

• It is not related to any other set

• It is a superset of any set

• It is a subset of any set

• It is equal to any set