Introduction
Understanding Data
- Nominal, ordinal and interval data
- Ratios and fractions
- Percentages
- Densities
Measures of central tendency
- Mean, median and mode
- Frequency distributions
Measures of dispersion
- Range interquartile range and standard deviation
Measures of concentration
- Nearest neighbour index
- Location quotient
- Lorenz curves
Measures of correlation
- Scatter graphs and lines of best fit
- Spearman rank correlation coefficient
Testing for differences between data sets
- Student's t test
- Mann-Whitney U test
- Chi-squared test
Exam style questions
- AS level questions
- A Level questions
Appendix 1
- Statistical tables
Appendix 2
- Choosing statistical methods for geographical fieldwork
Appendix 3
- Key terms
Appendix 4
- Specification cross-reference