Numerals and Sets

What type of set is denoted as either { } or ∅?

• Superset

• Empty (or Null) Set

• Disjointed Set

• Subset

Find n(A) when
A = {14, 16, 18, 20, 22, 24}

• 6
• 12
• 4
• 8

Which of the following statements are true for the Venn diagram shown?

• Overlapping sets

• Subsets

• Disjoint sets

• Equal sets

How many subsets will this set have? A= {a, b, c} ?

• 8

• 6

• 3

• 0

If every element in set A is also in set B, then...

• A is a subset of B
• B is a subset of A
• A = B
• A and B are disjoint

A = {x : x is a letter in the word SEAT}

B = {x : x is a letter in the word TASTE}

Determine if these two sets are equal or equivalent.

• Not equal because seat has 4 letters and taste has 5 letters.

• Equivalent because they have the same letters

• Equal because each set has the same cardinality and the same letters.

Determine if these two sets are equal or equivalent.

A = {2, 6, 10, 14}

B = {6, 2, 14, 16}

• Equal

• Equivalent

When two sets are equal, they have to have.....

• equal cardinal numbers

• exactly same elements

• at least one element common

• No element common

What do we call a set which has no element?

• Finite

• Infinite

• Singleton

• Empty

What is the cardinal number of an infinite set?

• Zero

• One

• Hundred

• Not defined