See the self-help resources below and/or book an appointment with a Maths help adviser.

1.3 Giving page numbers
Bar charts
An introduction to bar charts and how they are used to illustrate data.
File bar charts
BBC Skillswise - numbers
External link
An introduction to histograms and how they are used to illustrate data.
File histograms
File measures of variability
Measures of variability: the range, inter-quartile range and standard deviation
There are many ways of describing the variability in some data set. In this guide we discuss the range, interquartile range and standard deviation.
File pie chart
Pie charts
An introduction to pie charts and how they are used to illustrate data.
Using averages
There are several ways of calculating the average of a set of data including the mean, mode and median.
File using averages
Working with percentages
This study guide explains the various ways percentages can be used to compare values, quantify change and how to increase or decrease values.
File working with percentages

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