Has anyone noticed that the statistics that are shown to the students for each assignment are wonky? Looking at the graph, you expect it to be a box and whisker plot which shows all 4 quartiles for the grade distribution, but that doesn't seem to match the actual grades. For instance, I gave an exam and got statistics as shown:
The high, average, and low scores are correct, but my quartiles for this exam were 100-87-78-53-15, which does not match this plot at all. Can someone explain to me what's going on with this?