Stem and Leaf

http://www.bbc.co.uk/schools/ks3bitesize/maths/handling_data/collecting_recording/revise8.shtml

Stem and Leaf plots are a way to display quantitative data in a graphical form. Its uses two columns to split numbers that represent different figures. It the first coulmn goes the first digit and the second digit goes in the second cloumn. It makes it easier to see the mean and different data collected. The graph above show the difference in math grades out of 50. You can see that the three people scored a 17 on the test by looking at the first column and seeing the 1 and going over and seeing the three 7s.