Probability—tree diagrams, independent/dependent events, calculating combined probabilities, conditional probability Statistics—mean, median, mode, range, interpreting data sets, grouped frequency tables, estimating the mean from a frequency table Venn Diagrams & Set Notation—union, intersection, complement, using Venn diagrams to solve problems Ratio and Proportion—direct and inverse proportion, sharing in a given ratio, scaling quantities Algebraic Manipulation—simplifying expressions, solving linear equations, substituting into formulas Cumulative Frequency and Graphs—plotting and interpreting cumulative frequency diagrams, estimating percentiles and interquartile range