Making a Cumulative Grouped Frequency Table
A cumulative grouped 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 Grouped Frequency Table
Making a cumulative grouped frequency table is easy.Question
Construct a cumulative grouped frequency table for the numbers below.
Step-by-Step:
1
Construct a table with four columns:
Before we make a cumulative grouped frequency table, we need to make a grouped frequency table (the first three columns).
Read about how to make a grouped frequency table

2
In the Score column, write the groups of numbers. In our example, we will use the group of test scores assigned to the different grades.

3
Go through the set of numbers in the Question. For each number, see which of the group of numbers it belongs in. Cross it out and put a tally mark in the Tally column, in the row for that group of numbers.
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The first number is 2. It belongs in the 1 - 5 group. Cross it out and put a tally mark in the Tally column in the 1 - 5 row.
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The second number is 10. It belongs in the 6 - 10 group. Cross it out and put a tally mark in the Tally column in the 6 - 10 row.
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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.
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The cumulative frequency in the first row is equal to the frequency:
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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.
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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.
Answer:
The cumulative grouped frequency table is complete when all the cumulative frequencies have been entered: