OCR Maths: Higher GCSE - Check In Test 11.01 Basic probability and experiments

A 10 question test on Basic probability and experiments, comprising: 5 questions on procedural calculations; 3 questions on reasoning and communicating mathematically; and 2 problem solving questions. At the end of the test there is an extension activity which will allow more able students to stretch themselves. This resource is ideal for either formative or summative assessment and can be used in lesson time as a topic assessment, starter or plenary activity or for homework or revision.

Topics include:
The probability scale: use the 0-1 probability scale as a measure of likelihood of random events, for example, ‘impossible’ with 0, ‘evens’ with 0.5, ‘certain’ with 1.
Relative frequency: record, describe and analyse the relative frequency of outcomes of repeated experiments using tables and frequency trees.
Relative frequency and probability:
Use relative frequency as an estimate of probability.
Understand that relative frequencies approach the theoretical probability as the number of trials increases.
Equally likely outcomes and probability:
Calculate probabilities, expressed as fractions or decimals, in simple experiments with equally likely outcomes, for example flipping coins, rolling dice, etc.
Apply ideas of randomness and fairness in simple experiments.
Calculate probabilities of simple combined events, for example rolling two dice and looking at the totals.
Use probabilities to calculate the number of expected outcomes in repeated experiments.

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