Sets

Is the given set well-defined?

{subjects in Grade 7}

• yes

• no

• maybe

• cannot be determined

Is the given set well-defined?

{popular actors}

• yes

• no

• maybe

• cannot be determined

Which of the following is an empty set?

• Triangles with four sides.

• A quadrilateral that is a square.

• A triangle with equal lengths.

• A polygon with 5 sides.

Which of the following is an empty set?

• Pandas in Sarangani Province

• Philippine Presidents

• Planets in the Solar System

• Dogs in Malapatan

The following are the elements of set C = {first five counting numbers}, except

• 0

• 2

• 4

• 5

Determine the type of set.

Set A = {school days}

• well-defined

• not well-defined

• null set

Determine the type of set.

Set B = {bald men with braided hair}

• well-defined

• not well-defined

• null set

Determine the type of set.

Set C = {whole number less than five}

• well-defined

• not well-defined

• null set

Determine the type of set.

Set D = {vowels in the alphabet}

• well-defined

• not well-defined

• null set

Determine the type of set.

Set E = {pretty girls}

• well-defined

• not well-defined

• null set