Set Theory Quiz

A set is a ____________________.

• Collection of objects

• Single object

• Random group

• Undefined group

Each object in a set is called an ____________________.

• Element

• Member

• Part

• Piece

How many senior boys wrestle?

• 12

• 18

• 9

• 104

How many people belong to the gym?

• 575

• 68

• 24

• 89

What is a set?

• A collection of numbers

• A collection of objects

• A collection of letters

• A collection of words

Given A = {2, 6, 10, 13, 15, 17} and B = {2, 4, 10, 12, 17, 20}, what is A ∪ B?

• {2, 4, 6, 10, 12, 13, 15, 17, 20}

• {2, 10, 17}

• {4, 12, 20}

• {6, 13, 15}

What is the definition of a subset?

• A set containing all elements of another set

• A set with no elements

• A set with some elements of another set

• A set with elements not in another set

Given A = multiples of 10 and B = multiples of 5, is A a subset of B?

• Yes; A ⊆ B

• No

• Yes; B ⊆ A

• No; B ⊆ A

How many students have a smartphone and a tablet?

• 116

• 58

• 29

• 117

How many people only visited Dublin?

• 76

• 50

• 100

• 150