Table of Contents

  1. Using averages
    1. Introduction
    2. Part one: The Mean
    3. Part two: The Median
    4. Part three: The Mode
  2. Working with percentages
    1. Introduction
    2. Using percentages to compare information
    3. Calculating percentage change
    4. Calculating percentage increase or reductions
    5. Summary
  3. Measures of variability: the range, inter-quartile range and standard deviation
    1. Introduction
    2. The Range
    3. The Inter-quartile Range
    4. Calculating the Inter-quartile range using Excel
    5. The Standard Deviation
    6. Population and sample standard deviations
    7. Formulae for the standard deviation
    8. Calculating the standard deviation using Excel
    9. Summary
  4. Presenting numerical data
    1. Introduction
    2. Including numbers in the main body of text
    3. Presenting numbers in tables
    4. When to use tables
    5. Table design
    6. Examples of poor and better practice in the presentation of data in tables
  5. Graphs
  6. Types of Graph
    1. Bar charts
    2. Histograms
    3. Pie charts
    4. Line graphs
    5. Scatter plots
    6. Good graph design
    7. Components of a graph
    8. Chart area
    9. Reference to source of information
  7. Other design considerations
    1. Use of colour and shading
    2. 3D effects
    3. Summary
  8. Bar charts
    1. What is a bar chart?
    2. What types of data can be displayed using a bar chart?
    3. Different types of bar charts
  9. Histograms
    1. What are histograms?
    2. Grouping data in a histogram
  10. Pie charts
    1. What is a pie chart?
    2. What data can be presented using a pie chart?
    3. Design issues
    4. Comparing pie charts
    5. 3D effects and exploding pie charts