Representing and Measuring Data
This page deals with one-variable statistics. You need to know how to represent the data in tables and diagrams (histograms, cumulative frequency graphs and box-and-whisker diagrams), as well as measure the data using measures of central tendency (mean, median and mode) and dispersion (interquartile range, standard deviation and variance). It is not a difficult topic, but attention to detail is required. It is...