1 Introduction to descriptive statistics

2 Frequency tables

3 Diagrammatic representations

  3.1 The histogram

  3.2 The bar chart

  3.3 The pie chart

  3.4 Quartiles and the ogive

4 Location and spread

  4.1 Measures of location

  4.2 Measures of spread

  4.3 Summary

  4.4 Calculation of the variance