Making a Cumulative Frequency Table
A cumulative frequency table is a great way to present a lot of data. Imagine a teacher wanted an easy way to present the test scores of their mathematics class:How to Make a Cumulative Frequency Table
Making a cumulative frequency table is easy.Question
Construct a cumulative frequency table for the numbers below.StepbyStep:
1
Construct a table with four columns:
Before we make a cumulative frequency table, we need to make a frequency table (the first three columns). Read about how to make a frequency table
Before we make a cumulative frequency table, we need to make a frequency table (the first three columns). Read about how to make a frequency table
2
In the Score column, write each number that appears in the set of numbers down the column, from the smallest to largest.
3
Go through the set of numbers in the Question. For each number, cross it out and put a tally mark in the Tally column, in the row for that number.

The first number is 8. Cross it out and put a tally mark in the Tally column in the 8 row.

The second number is 10. Cross it out and put a tally mark in the Tally column in the 10 row.

Continue until all numbers have been crossed out and had tally marks placed in the Tally column.
4
For each row, count the tally marks. Write the number of tally marks in the Frequency column.
5
Complete the Cumulative frequency column. The cumulative frequency in each row is found by adding all the entries in the Frequency column from the top row to that row.

The cumulative frequency in the first row is equal to the frequency:

The cumulative frequency in the second row is found by adding the frequency in this row to all the frequencies above:
Note: It is also found by adding the frequency in this row to the cumulative frequency above. 
The cumulative frequency in the third row is found by adding the frequency in this row to all the frequencies above:
Note: It is also found by adding the frequency in this row to the cumulative frequency above.