Probability Concepts


Statistics is built upon a core set of concepts. The good news is, our walkthrough guide takes you through each one step by step - to guarantee you a strong foundation in Statistics, as well as the ability to smash those excellence questions. This guide walks you through:

  • How to understand and draw perfect venn diagrams (including those that go three ways)
  • How to perform calculations and draw conclusions from probability trees
  • Understanding experimental, theoretical and true probability - and how to use each of them to guarantee those excellence marks!


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Q. Where can I find the answers to the stop and check questions in the guide?

A. All the answers to the walkthrough guide questions are available on our website. When you order a guide, you will be sent the link to access these answers.


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A. If you'd like to return your guide for any reason, you should send your guide to StudyTime NZ, PO Box 19008 Courtenay Place, Wellington 6011. You will need to cover shipping costs and this is non-refundable. For more information: see


Q. How will the L3 Probability Concepts guide help with my exam?

A. The L3 Probability Concepts guide covers the key skills that could be tested in your exam including how to understand and draw venn diagrams, and how to draw conclusions from probability trees. In this guide, you will get definitions, relatable examples, and stop and check sections to ensure all the information is sticking. The best part? it's all written in a way that's easy to digest and will help you head into the exam with full confidence.

Level 3 Science – Probability Concept Walkthrough Guide

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