Dot Plots, Frequency, Stem & Leaf

A dot plot is a simple way to display data using dots. Each dot represents one data point.

You count the number of dots above each value to see how many times that value occurs.

Frequency is the number of times a particular value appears in a data set.

A stem-and-leaf plot is a way to display data where each number is split into a 'stem' (the leading digit) and a 'leaf' (the trailing digit).

List the stems in a vertical column and write the leaves next to their corresponding stems.

The highest value is the largest number in the data set.

Count all the dots in the dot plot.

It means that many data points have similar values.

The mode is the value with the most dots above it.

A frequency table organizes data to show how often each value occurs.