Basic Concepts on Sets

What is a well-defined collection of distinct objects or things?

• A. Union

• B. Subset

• C. Set

• D. Objects

Which of the following is a symbol for the subset?

•  $A.\ \in$  

•  $B.\ \ \notin$  

•  $C.\ \ \subseteq$  

•  $D.\ \ \not\subseteq$  

What do you call a set whose cardinality can be determined?

• A. Subset

• B. Null

• C. Infinite

• D. Finite

Which set denotes no element in a set?

• A. Subset

• B. Null

• C. Infinite

• D. Finite

Which of the following symbols denotes "is an element of "?

• $A.\ \ \in$

• $B.\ \ \notin$

• $C.\ \ \subseteq$

• $D.\ \ \not\subseteq$

Which is not included in set operations?

• A. Union

• B. Intersection

• C. Difference

• D. Cardinality

What do you call a set whose elements belong to either or both given sets?

• A. Union

• B. Intersection

• C. Difference

• D. Cardinality

What do you call a set whose elements are common to both sets?

• A. Union

• B. Intersection

• C. Difference

• D. Cardinality

How many elements are there if set A = {1, 2, 3, 4}

• A.  0

• B.  3

• C.  4

• D.  5

If A = {a, b, c, e}, and B = {t, d, c}, what is (A U B)?

• A. {a, b, c, d, e, t}

• B. {a, c}

• C. {a}

• D. {t}