In these lessons, we will learn how to construct Cumulative Frequency Tables for Ungrouped data and Grouped data.
Related Pages
Frequency Table
Cumulative Frequency Graph
More Statistics Lessons
The following table gives the frequency distribution of marks obtained by 28 students in a particular test.
| Marks | 30 | 31 | 32 | 33 |
| Frequency | 5 | 7 | 10 | 6 |
Construct a cumulative frequency table for the given data.
Solution:
| Marks | Frequency | Marks less than | Cumulative Frequency |
| 30 | 5 | 30 | 5 |
| 31 | 7 | 31 | 5 + 7 =12 |
| 32 | 10 | 32 | 12 + 10 =22 |
| 33 | 6 | 33 | 22 + 6 =28 |
This example shows how to make a cumulative frequency chart. Remember that in these charts, we simply want to keep track of the grand total of the data.
What is Data? What is Data Analysis? What is Evaluation? What is Frequency Distribution Table? What is Cumulative Frequency? What is Cumulative Frequency Table?
The following table gives the frequency distribution of mass of 40 objects.
| Mass (g) | 10–14 | 15–19 | 20–24 | 25–29 | 30–34 | 35–39 | 40–44 |
| Frequency | 3 | 4 | 10 | 12 | 6 | 3 | 2 |
Construct a cumulative frequency table for the given data.
Solution:
| Mass | Upper class boundaries | Frequency | Mass less than | Cumulative Frequency |
| 10 – 14 | 14.5 | 3 | 14.5 | 3 |
| 15 – 19 | 19.5 | 4 | 19.5 | 3 + 4 = 7 |
| 20 – 24 | 24.5 | 10 | 24.5 | 7 + 10 = 17 |
| 25 – 29 | 29.5 | 12 | 29.5 | 17 + 12 = 29 |
| 30 – 34 | 34.5 | 6 | 34.5 | 29 + 6 = 35 |
| 35 – 39 | 39.5 | 3 | 39.5 | 35 + 3 = 38 |
| 40 – 44 | 44.5 | 2 | 44.5 | 38 + 2 = 40 |
The following video how to construct the cumulative frequency table and cumulative frequency graph.
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