Sets Quiz

What notation represents the intersection of sets A and B?

• A - B

• A ∩ B

• A x B

• A ∪ B

What notation represents the union of sets A and B?

• A ∩ B is the union of sets A and B

• A ∪ B is the union of sets A and B.

• A - B is the union of sets A and B

• A + B is the union of sets A and B

What is the complement of set A, denoted as A'?

• The complement of set A, denoted as A', is the set of all elements that are not in set A

• The complement of set A, denoted as A', is the set of all negative numbers

• The complement of set A, denoted as A', is the set of all prime numbers

• The complement of set A, denoted as A', is the set of all even numbers

How many regions are there in a Venn diagram with 3 sets?

• 3

• 5

• 7

• 10

In a Venn diagram with 2 sets, if the intersection region is empty, what does it represent?

• The intersection region represents that the sets are complementary

• The intersection region represents that the sets are identical

• The intersection region represents that the sets are disjoint

• The intersection region being empty represents that there are no common elements between the two sets

• {3, 12}

• {6, 12}

• {9, 12}

• { }

• {5,9}

• {2,3,6,7,8}

• {2,3,5,6,7,8,9}

• {1,4}

• { }

If A = {1, 3, 5, 7, 9} and B = {2, 3, 5, 7}, what is A ∪ B?

• {3, 5, 7}

• {2, 3, 5, 7, 9}

• {1, 2, 3, 5, 7, 9}

• { }

Given:

U = { 1, 2, 3, 4, 5}

A = { 1, 2, 3 }

what is the complement of set A?

• A' = { 1,2,3,4,5}

• A' = { 1,2,3,}

• A' = { 4,5}

• A' = { }

If U = { red, blue, green, yellow, purple} and

A = {red, blue,yellow},

what is A'?

• A' = {green, purple}

• A' = {purple}

• A' = {blue, red, purple}

• A' = {red, blue, green}