Averages, cumulative frequency, probability trees, Venn diagrams, and sampling questions.
This area often rewards careful reading and structured notation more than long calculations.
Paper focus: Foundation consistency and Higher reasoning. Tiers: Foundation and Higher.
Keep diagrams tidy and make students label total probability before chasing single branches.
Use the upload flow for a real question, then return marks and theory notes in a board-aware review screen.
Use averages and spread measures in context.
Interpret and construct statistical diagrams.
Model combined events and conditional probability.
Complete or interpret a probability tree.
Compare two data sets from charts.
Use cumulative frequency or histogram information.