S1 Representation and Summary

Part of S1

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

Preparation

File:Statistics glossary.docx

Supporting activities

MSV activity on histograms

Sample data

Powerpoint - Coding

Notes

http://hansrosling.com Great videos

http://www.ted.com/talks/hans_rosling_shows_the_best_stats_you_ve_ever_seen.html