Probability Vocabulary

The chance that an event will happen. Chance/not chance

• independent event

• outcomes

• odds

• dependent event

The probability based on frequency of outcomes during an experiment

•  experimental probability

• fundamental counting principle

• mutually exclusive event

• dependent event

The ratio of the number of ways an event can occur to the number of possible outcomes.

• odds

• theoretical probability

•  outcomes

• dependent event

A diagram used to show the total number of possible outcomes in a probability event

• mutually exclusive event

• outcomes

• tree diagram

• odds

The outcome of one event does influence the outcome of the other event

• mutually exclusive event

• probability

• dependent event

• simple probability

2 or more events that cannot happen at the same time

• odds

• mutually exclusive event

• compound probability

• mutually inclusive event

a measure of the likelihood that the event will occur; ranges include 0 (impossible) to 1 (certain

• Probability

• frequency table

• event

• cumulative frequency

The percentage a specific frequency occurred out of all of the outcomes in the event

• probability

• relative frequency

• uniform probability

• cumulative frequency

When all outcomes of experiment are equally likely 

• probability

• relative frequency

• uniform probability

• cumulative frequency

A number from 0 to 1 that measures the likelihood that an event will occur

• outcomes

• event

• probability

• experiment