Cumulative Frequency Calculator


What is a Cumulative Frequency Calculator?

'Cuemath's Cumulative Frequency Calculator' is an online tool that helps to calculate the cumulative frequency for a given data set. Cuemath's online Cumulative Frequency calculator helps you to calculate the cumulative frequency in a few seconds.

NOTE: Please enter the values inside the flower brackets and seperated by commas.

How to Use Cumulative Frequency Calculator?

Please follow the steps below to find the cumulative frequency:

  • Step 1: Enter the frequency data set separated by a comma in the given input box.
  • Step 2: Click on the "Calculate" button to find the cumulative frequency. 
  • Step 3: Click on the "Reset" button to clear the fields and find the cumulative frequency for different data sets.

How to Find Cumulative Frequency?

Cumulative frequency(cf) is defined as the frequency of the first-class interval is added to the frequency of the second class, and this sum is added to the third class. Cumulative frequency is the total of a frequency and all frequencies in a frequency distribution until a certain defined class interval. 

Solved Example:

Find the cumulative frequency of the data set

Month         Number of toy cars sold (Frequency)   

January                    20                                                                           

February                  30                                                        

March                      15                                                         

April                         18                                                   

Solution:

Given: Data set = {20, 30, 15, 18}

Month         Number of toy cars sold (Frequency)         Total number of toy cars sold (Cumulative Frequency)

January                    20                                                                            20

February                  30                                                                     20 + 30 = 50

March                      15                                                                     50 + 15 = 65

April                         18                                                                      65 + 18 = 83

Therefore, cumulative frequency is {20, 50, 65, 83}

Similarly, you can try the calculator to find the cumulative frequency for the given data set: 

a)  {14, 15, 21, 7, 8, 16, 4, 5}   b)  {18, 25, 30, 16, 19, 22, 17}

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