Table of Contents
Part one: The Mean
Part two: The Median
Part three: The Mode
Working with percentages
Using percentages to compare information
Calculating percentage change
Calculating percentage increase or reductions
Measures of variability: the range, inter-quartile range and standard deviation
The Inter-quartile Range
Calculating the Inter-quartile range using Excel
The Standard Deviation
Population and sample standard deviations
Formulae for the standard deviation
Calculating the standard deviation using Excel
Presenting numerical data
Including numbers in the main body of text
Presenting numbers in tables
When to use tables
Examples of poor and better practice in the presentation of data in tables
Types of Graph
Good graph design
Components of a graph
Reference to source of information
Other design considerations
Use of colour and shading
What is a bar chart?
What types of data can be displayed using a bar chart?
Different types of bar charts
What are histograms?
Grouping data in a histogram
What is a pie chart?
What data can be presented using a pie chart?
Comparing pie charts
3D effects and exploding pie charts