Probability 1
Outcomes
 Construct sample spaces for singlestep experiments with equally likely outcomes (ACMSP167)

Assign probabilities to the outcomes of events and determine probabilities for events (ACMSP168)

Assign a probability of 0 to events that are impossible and a probability of 1 to events that are certain to occur
Examples

Assign probabilities to simple events by reasoning about equally likely outcomes, eg the probability of randomly drawing a card of the diamond suit from a standard pack of 52 playing cards is 13/25 = 1/4
Examples

Solve probability problems involving singlestep experiments using cards, dice, spinners, etc
Examples

Assign a probability of 0 to events that are impossible and a probability of 1 to events that are certain to occur

Identify complementary events and use the sum of probabilities to solve problems (ACMSP204)

Establish that the sum of the probabilities of all of the possible outcomes of a singlestep experiment is 1
Examples

Calculate the probability of a complementary event using the fact that the sum of the probabilities of complementary events is 1, eg the probability of 'rolling a 6' when rolling a die is 1/6, therefore the probability of the complementary event, 'not rol
Examples

Establish that the sum of the probabilities of all of the possible outcomes of a singlestep experiment is 1