S1 Representation and Summary
Part of S1
Contents
Objectives
- Using histograms, stem and leaf diagrams and box plots to compare distributions
- Back-to-back stem and leaf diagrams may be required
- Measures of location (mean, median, mode)
- Drawing simple inferences and give interpretations to measures of location and dispersion
- Data may be discrete, continuous, grouped or ungrouped
- Understanding and use of coding
- Measures of dispersion (variance, standard deviation, range and interpercentile ranges)
- Simple interpolation
- Interpretation of measures of location and dispersion
- Skewness
- Concepts of outliers. Location of outliers on a box plot
