What is a stem and leaf diagram?

Consider this example: The following marks were obtained in a test marked out of 50. 3, 23, 44, 41, 39, 29, 11, 18, 28, 48. Draw a stem and leaf diagram to represent the data. Note that in the table below, the left column represents the Tens part of the test mark. This is called the stem. The Right column represents the units part of the test mark. This is called the leaf. 0 3 1 1 8 2 3 9 8 3 9 4 4 1 8 The diagram can be ordered to produce an ordered stem and leaf diagram. 0 3 1 1 8 2 3 8 9 3 9 4 1 4 8 This diagram can be used to analyse the data. For example if you need to find the median (Middle score), find the 5th and 6th numbers in the table. The median is half way between 28 and 29. Median = 28.5