Understanding Sets Quiz 2

What is a set?

• A single item

• A collection of distinct items

• A group of similar items

• A way of counting items

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

• The set of stars in the sky

• The set of days in a week

• The set of whole numbers

• The set of sand grains on a beach

What type of set has elements that go on forever without an end?

• Finite set

• Empty set

• Universal set

• Infinite set

What is the cardinality of the set {red, blue, yellow}?

• 1

• 2

• 3

• 4

Which symbol represents an empty or null set?

• {}

• 0

• ∞

If we are discussing animals, what might be an example of a universal set?

• All animals on Earth

• Only dogs

• Only cats and birds

• Only domestic animals

Which of the following statements about cardinality is true?

• Cardinality is only for finite sets.

• Cardinality means how many elements are in a set.

• Cardinality is used to name elements in a set.

• Cardinality does not apply to sets.

The set of students who live forever is an example of:

• A finite set

• An infinite set

• An empty set

• A universal set

If , and , what is the cardinality of set B?

• 1

• 2

• 3

• 4

Which type of set contains all elements in a specific context, like all the animals in a zoo?

• Finite set

• Infinite set

• Empty set

• Universal set