Collection of Data
Sampling methods, types of data, questionnaires, bias
Collection of Data
Tabulation, Charts & Diagrams
Frequency tables, bar charts, pie charts, histograms, stem-and-leaf
Tabulation, Charts & Diagrams
Measures of Location
Mean, median, mode, grouped data, modal class, estimated mean
Measures of Location
Measures of Spread
Range, interquartile range, box plots, standard deviation
Measures of Spread
Scatter Diagrams & Correlation
Scatter graphs, correlation, line of best fit, Spearman's rank (H)
Scatter Diagrams & Correlation
The statistical enquiry cycle
The statistical enquiry cycle
Estimation and misleading statistics
Estimation and misleading statistics
Risk and comparing groups
Risk and comparing groups
Further higher techniques
Further higher techniques
Time Series
Time-series plots, trend lines, moving averages, seasonal variation
Probability
Probability scales, tree diagrams, Venn diagrams, combined events
Index Numbers
Price & quantity index numbers, RPI, weighted index numbers
Index Numbers
Probability Distributions
Binomial and Normal distributions, expected values
Probability Distributions
Standardised Scores & Quality Assurance
Standardised scores, control charts, quality assurance
Standardised Scores & Quality Assurance