How to draw a graph is just about all you need to know for most medical research papers.

A quadratic function can be drawn as a parabola on a graph. Find out how to plot the graph in this Bitesize KS3 maths video.

You can also choose a 3-D chart to add some aesthetic texture to the graph. These different graph options are relatively easy to create in Excel when you're looking to visually represent a data range.