MATH 7- 2nd Quarter

What is a set?

• A collection of numbers only

• A collection of well-defined, distinct objects

• A collection of random objects

• A collection of indistinct objects

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

• The set of all natural numbers

• The set of planets in the solar system

• The set of all points on a line

• The set of all real numbers

What does the cardinality of a set represent?

• The type of elements in the set

• The number of elements in the set

• The size of the set in terms of area

• The order of elements in the set

Which symbol denotes an empty set?

• ()

• []

• Ø

• {}

What is the union of sets A and B?

• The set containing elements in both A and B

• The set containing elements in A only

• The set containing elements in neither A nor B

• The set containing elements in B only

Which of the following is a proper subset of the set {1, 2, 3}?

• {4}

• {2, 3}

• {1, 2}

• {1, 2, 3}

What is the intersection of sets A and B?

• The set containing all elements from A

• The set containing all elements from B

• The set containing elements unique to A

• The set containing elements common to both A and B

Which of the following describes a universal set?

• A set with no elements

• A set containing all relevant elements for a particular context

• A set with a limited number of elements

• A set that is empty

What is a subset?

• A set that contains some or all elements of another set

• A set that contains all elements of another set

• A set that has no elements

• A set that is larger than another set

Which of the following is an example of an infinite set?

• The set of all even numbers

• The set of days in a week

• The set of months in a year

• The set of colors in a rainbow