Sets : subsets, elements, cardinality

Choose a well-defined set

• a set of volleyball players

• a set of pretty girls

• a set of tall students

• a set of hardworking teachers

The objects inside the set.

• subsets

• elements

• cardinality

• letters

The Cardinality is the number of elements in a set.

• true

• false

A subset is NOT a part of the universal set.

• true

• false

A set that has no element.

• zero

• null

• intersection

• union