Measures of Location and Spread
Section overview:
The PowerPoint below provides an overview of material in this topic, including explanations and examples - for the full experience, open in a new tab then download it. All exercise references are to the new specification Pearson textbook - you can access the digital version for free or buy your own for extra practice.
Written summary notes are also given below for quick revision of key points, plus a selection of exam-style questions (with solutions) to test your understanding.
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Notes:
Summary questions:
Topic assessment (with solutions)
(Both tasks also included under Representation of Data)
Remote learning:
Use the following resources when directed in order to build up the fundamental skills to make the most of your classroom learning. Prior knowledge for the topic is highlighted at the top of the page.
Standard deviation
Watch the video below, which reviews how to calculate summary statistics using your Classwiz calculator and introduces the new concept of standard deviation:
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Task
Once you have watched the video to the left, please complete the short Google Form on the Google Classroom post.
Optional task
Watch the video to the right to explore your calculator further. You will be needing it a lot in statistics.
If you are unsure about any of this work, please use the rest of the resources on this page or contact your teacher to fully develop your understanding on the topic before your next lesson.
Extra calculator support:
You can see what else your calculator can do within this topic in the video below:
A full video calculator guide for statistics can be found here.
Extra resources:
Use the videos below to support your understanding of the topic. The ones on the left are specific to the course, building up to demos of exam-style questions; the ones on the right are for your own amusement, although the alternative outlook may provide you with a deeper overall understanding and appreciation of the topic.
Playlist - Measures of location and spread
Introduction to formulae for mean and standard deviation from a frequency table
Extra fun!