# Probability

### Probability (Foundation Tier) – Complete Unit of Work

In this unit, students will learn how to calculate probabilities. They start by looking at likelihood and the probability scale, then working out theoretical probabilities of single events, before looking…

### Probability (Higher Tier) – Complete Unit of Work

In this unit, students will learn how to calculate probabilities. They start by working out theoretical probabilities of single events, before looking at using experiments to estimate probabilities. They will…

### Calculating Probabilities – Complete Lesson

This is a complete lesson on calculating probabilities that looks at how to work out numerical probabilities for an event happening or not happening. The lesson is designed with the…

### Likelihood & The Probability Scale – Complete Lesson

This is a complete lesson on likelihood and the probability scale that looks at how to express the likelihood of an event using words or using a scale from 0…

### Probability & Venn Diagrams – Complete Lesson

This is a complete lesson on probability and Venn diagrams that looks at how to use Venn diagrams to work out probabilities of combinations of events. The lesson is designed…

### Conditional Probability – Complete Lesson

This is a complete lesson on conditional probability that looks at how to work out conditional probabilities and how to use them to determine whether two events are independent. The…

### Probability Trees (Without Replacement) – Complete Lesson

This is a complete lesson on probability trees that extends previous learning on tree diagrams to include selection without replacement. The lesson is designed with the new GCSE specification in…

### Probability Trees (With Replacement) – Complete Lesson

This is a complete lesson on probability trees that looks at how to calculate combined probabilities of independent events using a tree diagram. The lesson is designed with the new…

### Probabilities of Independent Events – Complete Lesson

This is a complete lesson on probabilities of independent events that looks at how to find probabilities of one or both of two independent events happening. The lesson is designed…

### Sample Space Diagrams – Complete Lesson

This is a complete lesson on sample space diagrams that looks at how to find all combinations of outcomes for pairs of events by drawing sample space diagrams, and using…

### Relative Frequency & Expected Frequency – Complete Lesson

This is a complete lesson on relative frequency and expected frequency that looks at how to calculate the relative frequency of an event and the expected frequency of the event…

### Experimental & Theoretical Probability – Complete Lesson

This is a complete lesson on experimental and theoretical probability that looks at the difference between probabilities worked out theoretically, and probabilities found by carrying out an experiment. The lesson…