Stage 4 · Probability · Determine probabilities for complementary events · Topic: Probability · Year 7, 8
Verify that the sum of the probability of an event and its complement is a total of 1
Dot point ID k-10-2022-stage-4-probability/prb-dpc-stg4-02 · NESA code MA_K_10_CP_PRB_DPC_STG4_02 · See it on the NSW Curriculum website ↗
Outcomes for this focus area (MA4-PRO-C-01)
MA4-PRO-C-01 solves problems involving the probabilities of simple chance experimentsCore resources for this dot point
On-level resources, grouped by type. Need the building blocks? Use Support. Ready for more? Use Enrich.
Interactive tool
- Interactive toolStarterMaths Is Fun: Complement of an eventUse it for: P(not A) = 1 - P(A) explained.
Worksheet
- Corbettmaths practice questions: Probability: OR ruleUse it for: Free printable graded practice questions (with answers) on probability: or rule for drill or a quick check.
Video
- VideoStarterCorbettmaths video: Probability: not happeningUse it for: Short worked-example video on probability: not happening to model the method before practice or for flipped revision.
Focus area resources
Checked resources for Probability as a whole (not mapped to a single dot point).