GCSE Statistics Chapter 3 Summary- Representing and Processing Continuous Data

After completing this chapter, you will be able to;

  • Select suitable class intervals
  • Draw and interpret pie charts, frequency diagrams, stem and leaf diagrams, population pyramids, choropleth maps and histograms with equal and unequal class intervals
  • Understand the terms ‘symmetrical’, ‘positive skew’ and ‘negative skew’, and be able to identify such distributions
  • Recognise features that make graphs misleading. 
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Frequency tables, pie charts and stem and leaf diagrams

1.) Continuous data can be sorted into a frequency table. The class
intervals must not have gaps in between them or overlap each other.

2.) All possible values that round to the same number must fit into the same class

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Population pyramids

15.) Population pyramids look similar to two backtoback histograms. They
make it easy to compare aspects of a population, often by gender.

16.) They usually have class sizes, and therefore bars, the same width.

Chloropleth maps

17.) A chloropleth map is used to classify regions of a geographical…


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