IGCSE Mathematics: Reading and interpretations of graphs and tables of data
Throughout KS3, you should be quite familiar with interpreting graphs and tables. By now you should be able to read off a table! But anyway, lets do a quick recap!
Let’s take the example of shoe size: we recorded the shoe sizes of 30 students in a frequency table, shown on the right.
We always put the ‘options’ or ‘results’, which are fixed values, on the left column.
We would then record their frequencies (how many times it occurred, in this case, how many people have this shoe size) on the right. If we were to represent the data in a particular graph, we would put the ‘options’ (i.e. shoe size) on the x-axis; the frequency would be recorded on the y-axis. Easy!
There will be more information on how to interpret graphs in section 11.3. You should be very familiar with these graphs anyway!
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