1 Relative frequency: the result of dividing the absolute frequency of a certain value by the total number of data.  The sum of the relative frequencies is equal to $$1$$. We can prove this easily by factorizing $$N$$. Cumulative frequency: the sum of absolute frequencies of all the values equal to or less than the considered value.
Having said that you should have to wait 8 years from the last FILING DATE of your previous bankruptcy. The old time period prior to 2005 was 7 years before you could file again, but that was expanded to 8 years after the Bankruptcy Abuse and Consumer Protection Act of 2005 was passed.
Keep in mind, though, that many people have filed multiple bankruptcies. In fact, there are many circumstances in which filing bankruptcy a second time may make financial sense. To learn more about how long you must wait before you file bankruptcy in your jurisdiction, contact a local bankruptcy lawyer today.