Select the method or formula of your choice.
In This Topic
Counts
Count is the number of times each unique value occurs.
Cumulative counts (CumCt)
A cumulative count is the cumulative total of all the counts up to that unique value. For example, suppose your data are as follows: 1, 2, 1, 1, 3, 3, 1, 1, 3, 3. The cumulative count of Values 1 and Values 2 is 6, and the cumulative count of all three values is 10.
| Unique value | Count | Cumulative count |
|---|---|---|
| 1 | 5 | 5 |
| 2 | 1 | 5 + 1 = 6 |
| 3 | 4 | 5 + 1 + 4 = 10 |
Percents
Formula
For example, the percentage of Value 1 is 50%.
| Unique value | Count | Percent |
|---|---|---|
| 1 | 5 | 100 * 5/10 = 50% |
| 2 | 1 | 100 * 1/10 = 10% |
| 3 | 4 | 100 * 4/10 = 40% |
Cumulative percents (CumPct)
Minitab calculates the cumulative percentage for each unique value.
Formula
For example, the cumulative percentage of Values 1 and Values 2 is 60%, and the cumulative percentage of all three values is 100%.
| Unique value | Count | Cumulative percent |
|---|---|---|
| 1 | 5 | 100 * 5/10 = 50% |
| 2 | 1 | 100 * (5 + 1) / 10 = 60% |
| 3 | 4 | 100 * (5 + 1 + 4) / 10 = 100% |
