Dot Plots and Stem-and-Leaf Plots

A dot plot is a statistical chart that uses dots to represent the frequency of data points in a dataset.

A stem-and-leaf plot is a method of displaying quantitative data in a graphical format, similar to a histogram, that helps to visualize the shape of the distribution.

In a stem-and-leaf plot, the 'stem' represents the leading digit(s) of the data points, while the 'leaf' represents the trailing digit. For example, in the stem '5 | 3', '5' is the stem and '3' is the leaf, representing the number 53.

Dot plots are used to display small sets of data and to show the distribution of data points clearly.

Count the total number of leaves in the plot; each leaf represents one data point.

Stem-and-leaf plots are best for small to moderate-sized datasets of quantitative data.

A stem-and-leaf plot retains the original data values while providing a visual representation, unlike a histogram which groups data into bins.

The mode in a dot plot is the value that appears most frequently, represented by the highest stack of dots.

A leaf represents the last digit(s) of a data point in a stem-and-leaf plot.

To create a dot plot, draw a number line and place a dot above the number for each occurrence of that number in the dataset.