Discrete Quiz 2

A set is a way to represent a(n) _____ of objects.

• collection

• order

• cardinality

• database

The _____ of a set refers to the number of items in the set.

• notation

• element

• subset

• cardinality

Which equation represents the union of sets A and B?

• A (intersect symbol) B

• A X B

• A U B

• A - B

What law says that Set A intersects the Universal set at Set A?

• identity

• commutative

• complement

• distributive

The power set contains all subsets for a particular set but does not include the empty set.

• TRUE

• FALSE

_____ notation is used when we want to add all the elements in a sequence.

• Fibonacci

• Element

• Sequence

• Summation

Recursion requires a _____ as well as a defined recursive process.

• model

• function

• solution

• base case

Two sets are disjoint if they have no elements in common.

• TRUE

• FALSE

Let A be the set {red, blue} and B is the set {white}, what is A X B? In other words, what is the cartesian product of A X B?

• {red, white} , {blue, white}

• {red}, {blue}, {white}

• {red, blue, white}

• {red, blue}, {white}

Let A be the set {red, blue, green} and B is the set {yellow}, what is A X B? In other words, what is the cartesian product of A X B?

• {red, yellow} , {blue, yellow} , {green, yellow}

• {red}, {blue}, {green}, {yellow}

• {red, blue, green, yellow}

• {red, blue}, {green, yellow}