Page 171 - BA2 Integrated Workbook - Student 2017
P. 171
Risk 1: summarising and analysing data
3.5 Unequal class sizes
Histograms become more useful when we have unequal class sizes:
0 – 5
6 – 15
16 – 25
26 – 40
Representing frequency by height alone can be misleading and a switch to areas
(histograms) gives a fairer representation of the underlying data.
Go through illustration 9
Try TYU 6
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