Events and Outcomes (Leaving Cert Mathematics): Flashcards

The action or process carried out to generate a result

Any possible result that can occur from a trial

Specific result or group of results we are interested in

$P(E) = \frac{\text{successful outcomes}}{\text{total outcomes}}$

$0 \leq P(E) \leq 1$ (between 0 and 1 inclusive)

$P(E) = 1$ (guaranteed to happen)

$P(E) = 0$ (cannot possibly happen)

Events with exactly the same chance of happening

Each possible choice has an equal chance of being picked

All outcomes are equally likely to occur

52 cards

4 suits of 13 cards each

26 red cards and 26 black cards

All outcomes must be equally likely to occur

Simplify fractions to their lowest terms