Alg IIb - Obj 80 Stem and leaf plots

A stem-and-leaf plot is a method of displaying quantitative data in a graphical format, similar to a histogram, to retain the original data values while showing their distribution.

To read a stem-and-leaf plot, the 'stem' represents the leading digit(s) of the data values, while the 'leaf' represents the trailing digit. For example, in the stem '5' and leaf '3', the data value is 53.

The purpose of a stem-and-leaf plot is to organize and display data in a way that allows for easy visualization of the distribution, while also preserving the actual data values.

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

The stem represents the leading digit(s) of the data values.

The leaf represents the trailing digit of the data values.

To find the median, list all the data values represented by the plot, then find the middle value.

The mode is the value that appears most frequently in the data set.

Outliers can be identified as data points that are significantly higher or lower than the rest of the data, often appearing as isolated leaves.

The range is the difference between the highest and lowest values in the data set.