What Is a Frequency Table?
A frequency table shows how often (how frequently) each number appears in a list of numbers.
Imagine you had a set of numbers:
A frequency table is a way to present this data in a simpler way:
Understanding the Frequency Table
The frequency table tells you each number that appears in a list of numbers and how many times each number appears.
Let's look again at our list of numbers (rearranged in order and each number counted):
We see that 5 appears 2 times.
We write 5 in the Number column. It is the lowest number that appears in the list of numbers.
We write 2 in the Frequency column because 5 appears 2 times in the list of numbers.
We see that 6 appears 3 times.
We write 6 in the Number column. It is the next number (in numeric order) that appears in the list of numbers.
We write 3 in the Frequency column because 6 appears 3 times in the list of numbers.
The frequency table is complete when all numbers and their frequencies have been entered:
Finding Averages from a Frequency Table
The frequency table can be used to find the average of a set of numbers.
Other Types of Frequency Table
The frequency tables shown on this page are the basic type of frequency table. There are further variations on the basic frequency table.
A cumulative frequency table has another column which keeps a running total of the frequencies.
A grouped frequency table groups numbers together. It shows you how often numbers within each group appear in a list of numbers.
A cumulative grouped frequency table is a grouped frequency table that has another column which keeps a running total of the frequencies.