Topic 7 Probability

Compound Event: an event with multiple parts, like rolling a die and the flipping a coin.

Diagram: a visual representation, like a picture

Equivalent: having equal value

Event: a thing that happens (typically the thing we are describing with probability)

Experimental Probability: the ratio (# successes) / (# trials)

Frequency: the number of times a value or outcome occurs

Outcome: the result of an event. Example: Fran flips a coin, and it lands heads-up. The outcome is heads.

Probability: a mathematical description of the likelihood of an event

Probability Model: a sample space, a list of events, and all the probabilities associated with each

Ratio: a comparison of numbers by division. Examples: 3/4, 3:4, 3 to 4

Relative Frequency: frequency expressed as a ratio (usually a percent) compared to the total number of trials

Sample Space: the list of all possible outcomes

Simulation: an "experiment" used to model an event, such as rolling dice to simulate wins and losses in a baseball game.

Theoretical Probability: the ratio (# successful outcomes) / (size of the sample space)