The sum of the absolute frequencies is equal to the total number of data, represented bas $$N$$. Relative frequency: the result of dividing the absolute frequency of a certain value by the total number of data.
exists and is an alternate of . Cats usually live up to around 15-17 years, but some can live over 20 years old. Cats usually live up to around 15-17 years, but some can live over 20 years old.
Veterinary medicine has made some great advances in recent years, and this is one of the reasons the average age of domestic cats is increasing. A well cared for cat that is kept indoors and is fed a good nutritional diet, would be expected to live for about 15 years. Some cats do live to 20 plus years and there are records of a few cats reaching over 30 years. These sort of ages for a cat are very much the exception however. The genetic make up of a cat can be a factor in determining its life span, some breeds of cat appear to be more resilient than others.