Mathematical Requirements

Some of the mathematical requirements on page 58 of the specification may need more detail to explain the level expected. We are providing notes here.

• use ratios
• use and calculate percentages
• interpret frequency tables and diagrams, bar charts and histograms
• understand simple probability
• understand the principles of sampling as applied to scientific data

Note on sampling (32 KB)
Note on sampling (10 KB)

• understand the terms mean, median and modeuse a scatter diagram to show a correlation between variables
• understand the meaning of simple measures of correlation
• understand the meaning of simple measures of significance

Note on significance (34 KB)
Note on significance (16 KB)

• translate information between graphical and numerical forms
• sketch a graph indicating the relationship between two variables.