Author note — to cover

Set the relative frequency of an event beside its theoretical probability using common denominators or decimals, and describe the gap in context. Question types: whose results sit closer to theory, do these results support fairness. Both tiers. The fairness verdict itself is detecting-bias; the effect of more trials is effect-of-sample-size. (P3, P5)

Introduction

—coming soon—

Practice and continue

Practice

Comparing experimental and theoretical probability

Setting relative frequency against theory, and describing the gap between them.

Next lesson

Detecting bias

Judging whether a dice or spinner is fair, and how large a gap is suspicious.