Final answer:
The cumulative frequency is found by adding all the individual frequencies. It represents the total number of observations that are less than or equal to a certain value.
Step-by-step explanation:
The cumulative frequency is found by adding all the individual frequencies. It is the total number of observations that are less than or equal to a certain value. So, the correct option is D. To find the cumulative frequency, start with the first frequency value and add each subsequent frequency to the sum. Here is an example:
- Given frequencies: 10, 8, 15, 6
- Cumulative Frequencies: 10, 18, 33, 39