Technique Masterclasses

How this paper is actually marked

A deeper layer on top of the lessons: a guide to every question type this paper sets, every topic, term and formula it examines, practice with keys, and what has actually been asked. Every claim traces back to a real mark scheme, examiner report or spec document — genuine gaps are flagged, never papered over.

Topics

One guide per topic: the idea, worked examples, and every real question that has tested it.

Deep Dive: Conditional Probability Independence vs Mutually Exclusive Deep Dive: Correlation Coefficient and Regression Calculation Deep Dive: Discrete Random Variables Probability Function Deep Dive: Elementary Probability and Conditional Notation Deep Dive: Expectation and Variance of Linear Transformations Deep Dive: Mathematical Modelling in Probability and Statistics Deep Dive: Measures of Location and Dispersion Deep Dive: Normal Distribution Standardisation and Conditional Probability Deep Dive: Outliers Boxplots Comparing Distributions Deep Dive: Reading and Comparing Distributions Deep Dive: Regression Gradient Interpretation Extrapolation Deep Dive: Sampling Tree Diagrams Venn Diagrams Deep Dive: Show That Answer Discipline

Reference

Terms, formulas, cards and checklists.

Complete Worked Paper Diagram Masterclass Error Pattern Tracker Exam Technique Guide Examiner Mindset Guide Flashcard Bank Formula and Method Bank Level Threshold Guide Vocabulary Precision List

Past papers and examiner evidence

What has actually been asked, what the mark schemes credited, and what examiners said.

A Star Gap Analysis Examiner Intelligence Frequency and Boundaries Topic Brief: Conditional Probability Independence vs Mutually Exclusive Topic Brief: Correlation Coefficient and Regression Calculation Topic Brief: Discrete Random Variables Probability Function Topic Brief: Elementary Probability and Conditional Notation Topic Brief: Expectation and Variance of Linear Transformations Topic Brief: Mathematical Modelling in Probability and Statistics Topic Brief: Measures of Location and Dispersion Topic Brief: Normal Distribution Standardisation and Conditional Probability Topic Brief: Outliers Boxplots Comparing Distributions Topic Brief: Reading and Comparing Distributions Topic Brief: Regression Gradient Interpretation Extrapolation Topic Brief: Sampling Tree Diagrams Venn Diagrams Topic Brief: Show That Answer Discipline

Exam preparation

Timing, the exam-day routine and the last 48 hours.

Battle Card Exam Day Protocol Extended Forty Eight Hour Checklist Mock Paper Protocol Night Before Guide Question Selector Guide Spaced Repetition Schedule