GCSE Maths (Edexcel)
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Statistics
Statistics
Cumulative Frequency
3:11
Grouped Data & Cummulative Frequency
Spec
S3
S4
- Cumulative frequency is the sum of the frequency of a class and the classes before it in a grouped frequency table
- Grouped frequency tables show the number of data values within a certain range
- Cumulative frequency can be applied to both grouped discrete data
- To calculate cumulative frequency, add the frequency of each group to the previous cumulative frequency
- In the example of a golf tournament, the cumulative frequency is calculated by adding the frequency of each group to the previous cumulative frequency
- The final cumulative frequency is the sum of all the frequencies in the table
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