Probability Vocabulary

Compound Event

• Combination of two or more events using the word and or the word or.

• A single event that cannot be broken down further.

• An event that occurs only once in a probability experiment.

• A situation where two events cannot happen at the same time.

Dependent

• Events that do affect each other.

• Events that do not affect each other.

• Events that are completely random.

• Events that are independent of each other.

Union

• Elements from both sets *don't repeat*.

• Elements from both sets *do repeat*.

• Only elements from the first set are included.

• Only elements from the second set are included.

Complement

• Elements from the universal set that are NOT in that set.

• Elements that are part of the universal set.

• Elements that are equal to the universal set.

• Elements that are subsets of the universal set.

Independent

• Events that do not affect each other.

• Events that are dependent on each other.

• Events that occur at the same time.

• Events that are mutually exclusive.

Mutually Exclusive

• Events that can occur at the same time.

• Events with no common outcome.

• Events that are dependent on each other.

• Events that are equally likely to happen.

Conditional Probability

• The probability an event will occur given that an event has already occurred.

• The probability of two independent events occurring together.

• The probability of an event occurring without any conditions.

• The probability of an event occurring in the future.

Outcome

• Possible results of an event or experiment.

• A predetermined conclusion of a study.

• The initial hypothesis of an experiment.

• The method used to conduct an experiment.

Intersection

• The elements that two sets have in common.

• The total number of elements in a set.

• The difference between two sets.

• The union of two sets.

Overlapping

• Events having a common outcome.

• Events that occur at different times.

• Events that are completely unrelated.

• Events that are sequentially dependent.