I have made a box plot to show the spread of past paper results for my A2 exams so I can easily see which subject need more work!
BoxWhiskerChart[data, "Outliers", ChartLabels->{data[[All,1]]}, BarOrigin->Left, ImageSize->Medium, ChartStyle->Blue]
The above code gives me the following output:
Now, the average for an A is around 61 marks, is there a way to draw a line going from the bottom to top of the chart at the 61 mark limit. This could then give me a better indication of what sort of grade I'm hitting.