A stem-and-leaf plot is a type of plot that displays data by splitting up each value in a dataset into a *stem* and a *leaf*.

This tutorial explains how to calculate the mean, median, and mode of a stem-and-leaf plot.

**Example: Mean, Median & Mode of Stem-and-Leaf Plot**

Suppose we have the following stem-and-leaf plot that shows the height of 19 different plants:

**Mean:**

To find the mean of this dataset, we can add up all of the individual values and divide by the total sample size of 19:

Mean = (11+12+13+26+26+30+31+31+42+45+46+51+52+61+78+82+82+93+94) / 19 = **47.68**.

The mean turns out to be **47.68**. This is the average value of the dataset.

**Median:**

To find the median of this dataset, we can write out all of the individual values in order and identify the value that lies directly in the middle:

11, 12, 13, 26, 26, 30, 31, 31, 42, **45**, 46, 51, 52, 61, 78, 82, 82, 93, 94

The median turns out to be **45**. This is the value located directly in the middle of the dataset.

**Mode:**

To find the mode of this dataset, we can identify the values that occur most often:

11, 12, 13, **26**, **26**, 30, 31, 31, 42, 45, 46, 51, 52, 61, 78, **82**, **82**, 93, 94

This dataset has two modes: **26** and **82**. Each of these values occurs twice in the dataset while every other value only occurs once.

**Additional Resources**

Stem and Leaf Plot Generator

How to Create a Stem-and-Leaf Plot in Excel

How to Create Back to Back Stem-and-Leaf Plots

How to Make a Stem and Leaf Plot with Decimals