Data presentation for service tally
Presentation method - Bar chart
The data was plotted so that the type of service was along the
x axis and the quantity was along the y axis.
This was easily understood and so we could understand the
We used a bar chart as it is discrete data in categories, which
are separate and different.
We used a bar chart instead of a pie chart as we were
interested in the quantity of the services, not the proportion of
which services were in which category .
How could this be improved?.
We could have represented the data on a map by colouring different areas the colour of the service with proportional symbols. This would have enabled us to see the variations across different areas. We could have done a stacked bar chart, grouping the bar chart by sectors.