Probability and statistics

Essential Mathematics Year 9

Downloadable Lesson notes

Chapters

Start

Welcome!

Learning objectives

Recap of past learning

What is a two-step experiment

Throwing a coin and listing the outcomes

Throwing a coin with a table (or array)

With or without replacement

Example: CAT with replacement

Example: CAT without replacement

Example 1

Example 2

Final words

Description

This is the next video looking at Probability for the Year 9 course and deals with Using arrays for two-step experiments. Whilst we can list all the outcomes from an experiment in a sample space, it's not the most user friendly way of showing the outcomes. This lesson looks at how we can be more visual in the display of the outcomes when we have two-step experiments. What is a two-step experiment? Well, watch the video and all will be revealed. There are lots of worked examples (provided by Cambridge series of textbooks) and the theory is explained in an easy to understand way.

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