A stem and leaf plot with decimals is an organized representation of the frequency with which certain numbers containing decimals occur in a set of data. Stem and leaf plots can be applied in a number of different fields for bookkeeping and to help keep sets of information analyzed. There are also forms of stem and leaf plots that are charted the same way, but do not use decimals.
All stem and leaf plots are set up with one string of numbers running from smallest to largest on a vertical axis, separated by a straight line from another series of numbers. Each series of numbers on the right of the line are separated by commas and correspond to one of the numbers on the left. In a regular stem and leaf plot, the number on the left represents the tens place, and the numbers on the right are the ones place of each number that occurred in the data set, according to Purplemath.
With a decimal-based stem and leaf plot, the setup is similar. Instead of the left and right sides of the chart denoting the tens and ones places, they represent the ones and tenths places. There are no decimal points that actually appear on a stem and leaf chart. The vertical line separating the two columns takes the place of the decimal instead.