Data is a collection of information, arranged in such a way that it can be analysed. The Pictorial Representation of Data quiz looked at different ways of displaying data, this GCSE Maths quiz will explore some of the common tools that can be used to analyse data.
In very general terms, data can be split into two types – qualitative data is descriptive (i.e. uses words), and quantitative data is numerical. In-depth analysis of descriptive data can be quite hard to do, whereas it is easy and quick to gain some understanding of numerical data.
The two key questions when analysing data are: where is it generally located? From this, we look at the different types of averages.