5.2 Vocabulary

Union of events A and B

• consists of the outcomes that are common to both events A and B.

• any collection of outcomes from some random process

• consists of all outcomes that are in event A or event B, or both A and B.

• the event that A does not occur

Mutually exclusive events

• the event that A does not occur

• any collection of outcomes from some random process

• the list of all possible outcomes

• Events that have no outcomes in common.

Sample space is

• the list of all possible outcomes

• the event that A does not occur

• a description of some random process that consists of two parts, the sample space and the probability for each outcome

• consists of all outcomes that are common to both events.

Probability model

• a diagram that consists of one or more circles surrounded by a rectangle. Each circle representing an event. The region inside the rectangle represents the sample space of the random process.

• a description of some random process that consists of two parts, the sample space and the probability for each outcome

• consists of all outcomes that are common to both events.

• any collection of outcomes from some random process

Venn diagram:

• a description of some random process that consists of two parts, the sample space and the probability for each outcome

• any collection of outcomes from some random process

• a diagram that consists of one or more circles surrounded by a rectangle. Each circle representing an event. The region inside the rectangle represents the sample space of the random process.

• the event that A does not occur

Complement of A

• any collection of outcomes from some random process

• consists of all outcomes that are common to both events.

• consists of all outcomes that are in event A or event B, or both

• the event that A does not occur

Event

• any collection of outcomes from some random process

•  the list of all possible outcomes

• a description of some random process that consists of two parts, the sample space and the probability for each outcome

• consists of all outcomes that are in event A or event B, or both.

Intersection of events A and B

• consists of all outcomes that are in event A or event B, or both. AUB.

• any collection of outcomes from some random process

• consists of all outcomes that are common to both events

• the list of all possible outcomes

The intersection of events A and B is denoted as

• A∩B

• AUB

Union of events A and B is denoted as

• AUB

• A∩B