Dot Plots and Stem and Leaf

A dot plot is a statistical chart that consists of dots plotted on a number line, where each dot represents a data point.

To find the mean, add all the numbers together and divide by the total number of data points.

The median is the middle value when the data set is ordered from least to greatest. If there are two middle numbers, add them together and divide by 2.

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

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

A stem-and-leaf plot is created by separating each data point into a 'stem' (the leading digit or digits) and a 'leaf' (the last digit).

A dot plot visually displays the frequency of data points in a data set, making it easy to see patterns and trends.

A stem-and-leaf plot helps to organize data while preserving the original values, allowing for easy identification of the distribution.

The mode in a dot plot is identified by finding the value with the most dots above it.

The first step in finding the mean is to add all the values in the data set together.