Answer
In a stem-and-leaf display, each numerical data item is split into two parts. The last digit of the data item is called the leaf, while all the leading digits make up the stem. Leaves with the same stem are written one after each other in the same row.
Work Step by Step
For example, data items $252,253,259,260,272$ would appear in a stem-and-leaf display as follows
$ \begin{array}{ll}
\rm Stem & \rm Leaf\\
\hline\vdots & \vdots\\
25 & 239\\
26 & 0\\
27 & 2\\
\vdots & \vdots
\end{array}$
