Event

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A collection of outcomes from a probability activity or a situation involving an element of chance.

An event that consists of one outcome is called a simple event. An event that consists of more than one outcome is called a compound event.

Example 1

In a situation where a person will be selected and their eye colour recorded; blue, grey or green is an event (consisting of the 3 outcomes: blue, grey, green).

Example 2

In a situation where two dice will be rolled and the numbers on each die recorded, a total of 5 is an event (consisting of the 4 outcomes: (1, 4), (2, 3), (3, 2), (4, 1), where (1, 4) means a 1 on the first die and a 4 on the second).

Example 3

In a situation where a person will be selected at random from a population and their weight recorded, heavier than 70kg is an event.

Curriculum achievement objectives references
Probability: Levels (5), (6), (7), 8