The cumulative frequency of the data given is shown in the image attached below.
How to Find the Cumulative Frequency?
To find the cumulative frequency of each data with a given class interval or data point, and their respective frequency, simply add each frequency from the frequency distribution to the sum of the previous frequency.
The cumulative frequency of the data in the table given would be calculated as shown below:
15 - 18 ---> 5 + 0 = 5
19 - 22 ---> 10 + 5 = 15
23 - 26 ---> 7 + 15 = 22
27 - 30 ---> 3 + 22 = 25
31 - 34 ---> 3 + 25 = 28
35 - 38 ---> 2 + 28 = 30
Thus, the cumulative frequency of the data given is shown in the image attached below.
Learn more about cumulative frequency on:
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