Numbers and Number Sense - Sets

It is a well-defined collection of objects.

• ordered pair

• set

• element

• relation

Which of the following is a well-defined set?

• a set of painters

• a set of students

• a set of Philippine Presidents

• a set of actors

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

• 2

• 3

• 4

• 5

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

• the set of whole numbers

• B = {-10, -9, -8, …8, 9, 10}

• A = {x|x is the set of rational numbers}

• C = {… -10, -9, -8, … 8, 9, 10, …}

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

• the female presidents of the Philippines

• the cities in Metro Manila

• the sands in the beach

• the letters in the English alphabet

Given the set of consonants in the word “STATISTICS”. What is the cardinality of the given set?

• 10

• 3

• 7

• 5

The symbol for intersection is ________.

• U

• ∩

• $\Delta$

• $\epsilon$

If A = (a, b, c), how many subsets does A have?

• 3

• 4

• 6

• 8

if M = {5,6,7,8,9,10} and N = {3,4,5}, what is  $N\cup M$  

• {5,6,7,8,9}

• {3,4,5,6,7,8,9,10}

• { }

• {3,4,5}

Find the complement of the given set for U = {0,2,4,6} if D = {0.2}

• D' = {4,6}

• D' = {2,4,6}

• D' = {0,2,4}

• D' = { }