LESSON: Intro to Probability Notation
Important Vocabulary
As I said before, probability can look like a whole new language at first! So it's important to learn the terms and symbols that we use in order to successfully understand this topic.
The following are the symbols and vocabulary words that will show up in our study of probability:
Probability: the likelihood that something will occurr
Theoretical Probability: a type of probability calculation that is used when all outcomes are equally likely to occurr
Outcome: the result of a single trial of an experiment
Event: a set of related outcomes
Mutually Exclusive Events: two events that cannot occur at the same time
Disjoint: describes two events that have a probability of 0 for occurring at the same time
$$\bigcup$$: in probability means "or" and is sometimes referred to as "union"
$$\bigcap$$: in probability means "and" and is sometimes referred to as "intersection"
| : in probability means "given"
P(A): translates to, "The probability of event A."