INTRODUCTION TO SETS

Which of the following is a well-defined set?

• A set of beautiful teachers

• A set of basketball players

• A set of President of the Republic of the Philippines

• A set of Class Honors

List all the letters in the name " jennylyn"

• {j,e,n,n,y,l,y,n}

• {j,e,n,y,l,y,n}

• {j,e,n,y,l}

• {j.e.n}

Given the set of letters in the word "mathematics", what is the cardinality of the given set?

• 11

• 8

• 6

• 4

Which of the following is the symbol of an empty set?

• $\cap$

• $\cup$

• $\subseteq$

• $\phi$

Which of the following is a subset of A = {1,2,3}

• {0}

• {0,1}

• {1,2}

• {2,3,4}

Which of the following set has the cardinality equals to 5?

• Set A is the set of counting numbers less than 5

• Set B is the set of letters in the word "RACER"

• Set C is the set of positive multiples of 5

• Set D is a set of vowel letters in the English Alphabet

Which one of the following sets is infinite?

• The set of whole numbers less than 10

• The set of prime numbers less than 10

• The set of integers less than 10

• The set of factors of 10

A is the set of factors of 18.

Which of the following is not a member of A?

• 2

• 3

• 5

• 9

1. An object or member in a set is called __________.

• an element

• an item

• a person

• a thing

Tags

CCSS.2.OA.C.3

If A = {even numbers less than 13}, then

• A = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}

• A = {1,3, 5, 7, 9, 11}

• A = {2, 4, 6, 8, 10, 12}

• A = {2, 4, 6, 8, 11,}

Tags

CCSS.5.OA.B.3