User:Saul/probability

Notations

Ω - The outcome space.
ω - An outcome.
∅ - A non event.
∪ - Union.
∩ - Intersection.
∈ - Is in.
∉ - Is not in.
⊂ - Subset of.
⊆ - Subset or equal to.

Note: there is a small difference between ⊂ & ⊆ but sometimes they get used interchangeably.

⊄ - Is not a subset of.
⊃ - Superset of.
⊇ - Is not a superset of.
A^c - A compliment - The event A does not occur.
ω∈A - The outcome ω is in the event A
A∪B - The union of A and B - The set containing all the elements from A and B without duplicates. A∩B - The intersection of A and B - The set containing all the common elements from A and B.