Quiz 1: Sets and Subset

1.      Which statement best describes a set?

• Well-defined collection of objects

• Group of information with a criterion

• Cluster of precise objects

• Gathering of facts with a specific category

Which rule describes the set {1, 2, 3, 4, …} ?

• { x|x ≥ 0 }

• { x|x ≥ 0; x is a rational number }

• { x|x ≥ 0; is an integer number }

• { x|x ≥ 0; is a natural number }

3.      What is the definition of a subset?

• A set that contains all elements of another set

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

• A set that has no elements

• A set that is equal to another set

A = { x|x  is an odd number }.

Set shows what kind of set?

• Null Set

• Finite Set

• Singleton Set

• Infinite Set

What is the union of two sets?

• A set containing all elements from both sets

• A set containing only the common elements of both sets

• A set containing elements that are in neither set

• A set containing elements that are in one of the sets but not both

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

• Set of all integers

• Set of days in a week

• Set of all real numbers

• Set of all points in a plane

What type of set is represented by the notation {x | x is a prime number}?

• Finite Set

• Infinite Set

• Singleton Set

• Null Set

What type of set is represented by the notation {x | x is a whole number}?

• Finite Set

• Infinite Set

• Singleton Set

• Null Set

Which of the following best describes the intersection of two sets?

• A set containing all elements from both sets

• A set containing only the common elements of both sets

• A set containing elements that are in one of the sets but not both

• A set containing elements that are in neither set

Which statement is true about the empty set?

• It contains at least one element

• It is a subset of every set

• It is a finite set

• It is equal to the set of all natural numbers