A6: Dealing with data

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  Introduction  p. 3 
6.1  Collecting data   p. 4 
6.2  Organising and displaying data from tables  p. 7 
6.3  Organising and displaying raw data
6.3.1        Frequency distribution table
                 Grouped frequency distribution table
6.3.2        Frequency histograms
6.3.3        Stem-and-leaf-plot 
p. 14
p. 14
p. 17
p. 18
p. 23 
6.4 Analysing data
6.4.1        Where is the centre of these data?
6.4.2        How spread out are these data?          
p. 28 
p. 29
p. 38
6.5  Data with two variables  p. 39 
6.6 A taste of things to come  p. 46
6.7 Post-test    p. 49
6.8 Solutions p. 51