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  • Graphs
    • Bar chart
      • The height of each bar represents the frequency of each category
      • Space should be left between bars.
      • When you have data that isn't continuous
        • Use this there are categories of behaviour particularly for observations
    • Histogram
      • They are like bar charts but show the ‘frequency density’ (they show how the data is distributed) across categories
      • The bars may have unequal widths
        • The bars must be joined together
      • When there are categories of behaviour on a continuous scale, that have been divided into categories
    • Scattergraph
      • Used to represent relationships between data
      • Plots are not joined
      • Used when a correlation has been conducted
    • Pie Chart
      • Alternative to a bar chart. Each pie slice is a category of behaviour.
      • Used when there is non-continuous data
      • Divide each frequency by the total frequencies and multiply by 360 degrees
    • Line Graph
      • Alternative to a histogram, a dot represents each bar and a line connects each dot
      • Used to show how something changes over time
      • Can be useful to compare 2 or more conditions


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