Introduction to Sets

Which of the following best describes a set?

• A collection of related items

• A collection of random items

• A collection of disconnected items

• A collection of unrelated items

What is the first natural number in a set of natural numbers?

• 1

• 3

• 0

• 2

What is the definition of a set?

• A group of connected items

• A group of arbitrary items

• A group of separate items

• A group of unrelated items

What is the cardinality of an empty set?

• 0

• 1

• Infinity

• Undefined

Which of the following is an example of a finite set?

• The set of all even numbers

• The set of all prime numbers

• The set of all natural numbers

• The set of all real numbers

Sets contain certain entities within them called.............................

• elements
• ingredients
• components
• members

A universal set is also known as the mother set because.................................

• it contains all the elements of the sets under consideration
• it is the most specific set
• it only contains a few elements
• it is the smallest set

The infinite set is the set that does not have a known..............................

• middle
• end or limit
• beginning
• purpose

What is the union of two sets?

• The set of all elements that are in either of the two sets

• The set of all elements that are in both of the two sets

• The set of all elements that are in neither of the two sets

• The set of all elements that are in only one of the two sets

What is the intersection of two sets?

• The set of all elements that are in either of the two sets

• The set of all elements that are in both of the two sets

• The set of all elements that are in neither of the two sets

• The set of all elements that are in only one of the two sets