what is a cumulative frequency distribution
Cumulative relative frequency distribution is the ratio of the cumulative frequency to the size of the sample. The relative cumulative frequency or percentage cumulative frequency is the cumulative frequency divided by the total frequency.A cumulative relative frequency distribution shows the proportion of data items and can be computed either by summing the relative frequencies in the relative frequency distribution.umulative relative frequency distribution is the ratio of the cumulative frequency to the size of the sample. The relative cumulative frequency or percentage cumulative frequency is the cumulative frequency divided by the total frequency.