What is the difference between Simple frequency distribution and cumulative frequency diatribution?
Dear student,
Frequency :Frequency is the number of times occurrence of an event in a particular class interval.
Cumulative frequency: it is used to determine the number of observations that lie below a particular value in a data set.
The cumulative frequency is calculated by adding each frequency from a frequency distribution table to the sum of its predecessors. The last value will always be equal to the total for all observations.
The following table represents the marks obtained by a class of 40 students out of 50.
There are 3 students, who scored marks less than 10.
8 students scored marks less than 20. So cumulative frequency is 11.
Thus 11 students scored marks less than 20.
Regards
Frequency :Frequency is the number of times occurrence of an event in a particular class interval.
Cumulative frequency: it is used to determine the number of observations that lie below a particular value in a data set.
The cumulative frequency is calculated by adding each frequency from a frequency distribution table to the sum of its predecessors. The last value will always be equal to the total for all observations.
The following table represents the marks obtained by a class of 40 students out of 50.
There are 3 students, who scored marks less than 10.
8 students scored marks less than 20. So cumulative frequency is 11.
Thus 11 students scored marks less than 20.
| class Interval | frequency | cumulative frequency |
| 0-10 | 3 | 3 |
| 10-20 | 8 | 11 |
| 20-30 | 12 | 23 |
| 30-40 | 12 | 35 |
| 40-50 | 5 | 40 |
Regards