Support Verify that the total of the probabilities of all possible outcomes of an event is 1

Resources for the prerequisite content of this dot point: earlier-stage (or earlier sub-level) dot points in the same strand that students usually need first. Use these to fill gaps before or alongside the core lesson.

Prerequisite links are draft mappings generated from the syllabus structure (earlier stage, same strand, closest content). They are being reviewed by teachers. Spot a poor match? Tell us.

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Prerequisite dot points

Establish that the total of the probabilities of the outcomes of a chance experiment equals one

Stage 3 · Chance A Draft mapping

No checked resources on this prerequisite dot point yet.

Assign expected probabilities to outcomes in chance experiments with random generators, including digital simulators, and compare the expected probabilities with the observed probabilities after both small and large numbers of trials

Stage 3 · Chance B Draft mapping

Interactive toolEnrichment
NRICH: Which Spinners?
NRICH (University of Cambridge) · Interactive (browser) · Free · Link checked 2026-10-15 · Low floor high ceiling, No prep, Teacher notes
Use it for: Match spinners to their results using expected vs observed frequency.

Record the outcomes for chance experiments where the outcomes are not equally likely to occur and assign probabilities to the outcomes using fractions (denominators of 2, 3, 4, 5, 6, 8 and 10)

Stage 3 · Chance B Draft mapping

No checked resources on this prerequisite dot point yet.