X | 1 | 2 | 4 | 5 | 6 |
F | 1 | 3 | 2 | 4 | 1 |
The cumulative frequency is calculated from a
frequency table, by adding each frequency to the total of the frequencies of
all data values before it in the data set.
X | F | Cumulative frequency(cf) |
1 | 1 | 1 |
2 | 3 | 1+3=4 |
4 | 2 | 4+2=6 |
5 | 4 | 6+4=10 |
6 | 1 | 10+1=11 |