Sets

A ______ is a well-defined group of objects.

What do you call the objects that share a common characteristic?

• Set
• Group
• Elements

• Collection

What symbol is used for not an element?

• ∉
• ∋
• ∈
• ⊄

What do you call for this symbol - { } or ∅?

• element

• Square brackets

• Angle brackets

• null or empty set

The elements are separated by a comma and enclosed between a pair of braces.

• True

• False

A _____ are the sets whose elements are contained within another set.

⊆ is a symbol for universal set.

• True

• False

The set that contains ALL objects under consideration

• Subset

• Universal Set

• Null Set

• Cardinality

W = {r, e, e, s, e}

The cardinality of set W is _____

• 0

• 4

• 5

• 6

Intersection of sets is denoted by?

• { }

• ∪

• -

• ∩