Suppose we have following data which has to arranged using stem and leaf plot: 120, 130, 470, 180, 160, 240, 200, 220, 250, 260, 270, 320, 290. 280, 140. To make back - to – back stem ad leaf plot we 1st need to rearrange data such that it is present in a particular mathematical order of numbers. Suppose we are arranging the set in ascending order, then it becomes:

120, 130, 140, 160, 180, 200, 220, 240, 250, 260, 270, 280, 290. 320, 470.

Here stem for data set will be the hundredth place value digit i.e. 1, 2, 3 and 4 and corresponding to them leaf values will be written as tens digits. For instance, if we write stem as 1 and leaf as 2 then it means the number 120 and similarly the complete plot is made. So, to start with we 1st make two columns with one column representing the stem values as hundredth place value digit and another for leaf values being represented by the tens place value digits as follows:

Stem Leaf

1 2, 3, 4, 6, 8

2 0, 2, 4, 5, 6, 7, 8, 9

3 2

4 7

Where, 2 in stem and 0 in leaf means 200.