Statistics 1: Probability

A free probability worksheet for A-Level and International A-Level Maths, covering the probability content of Statistics 1. It works through the probability scale and counting outcomes, probabilities add up to 1 and fractions, decimals and percentages. Questions are grouped into fluency, reasoning and problem solving, so you build the technique first and then apply it to the kind of unfamiliar, multi-step questions that separate grades in the exam. Written to match the style and presentation of Edexcel International A-Level and 9MA0. Full step-by-step solutions are provided in a separate PDF, so you can check your method as well as your answer.